The family was grouped together for the photograph.

全家人聚在一起照相。

The lens of a camera forms images.

照相机的镜头使图像形成。

The body of the camera makes it highly resilient to outdoor use.

这部照相机的机身很外使用。

There is a build-in flashgun in this camera.

这个照相机里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿被人照相。

They X-rayed my arm to see if it was broken.

他们给我用X光照相检查看我的胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有人来照相, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的照相机有可调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一种通用的超方法———用还原剂对照相潜影进行还原强。

This camera loads easily.

这架照相机装胶卷很容易。

Who interfered with my camera?

谁擅自用过我的照相机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同照相版影印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有的照相馆都打了电话, 找到了放大照片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了用广角天体照相似的照相天图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人员们用照相机对这些不流汗的鸟进行了拍照。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司照相机目镜，由蔡司专为观鸟镜系列制造的可同时捕捉数字式图片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照相干版用于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微照相技术中，度量副本离原始资料远近的程度。第一次缩微后的胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去的十年中，大量研究证明对强烈激事件的记忆并不是象照相机的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度的因素。

The family was grouped together for the photograph.

全家人聚在一起。

The lens of a camera forms images.

的镜头使图像形成。

The body of the camera makes it highly resilient to outdoor use.

这部的身很适合户外使。

There is a build-in flashgun in this camera.

这个里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿被人。

They X-rayed my arm to see if it was broken.

他们给我X光检查看我的胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有人来, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的有可调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一的超感方法———还原剂对潜影进行还原强。

This camera loads easily.

这架装胶卷很容易。

Who interfered with my camera?

谁擅自过我的?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同版影印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有的馆都打了电话, 找到了放大片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了应广角天体似的天图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人员们热感应对这些不流汗的鸟进行了拍。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司目镜，由蔡司专为观鸟镜系列制造的可同时捕捉数字式图片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬干版适于各常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微技术中，度量副本离原始资料远近的程度。第一次缩微后的胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去的十年中，大量研究证明对强烈应激事件的记忆并不是象的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中法校正飞无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度的因素。

The family was grouped together for the photograph.

全家人聚在一起照相。

The lens of a camera forms images.

照相机镜头使图像形成。

The body of the camera makes it highly resilient to outdoor use.

这部照相机机身很适合户外使用。

There is a build-in flashgun in this camera.

这个照相机里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿被人照相。

They X-rayed my arm to see if it was broken.

他们给我用X光照相检查看我胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有人来照相, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵照相机有调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一种通用超感方法———用还原剂对照相潜影进行还原强。

This camera loads easily.

这架照相机装胶卷很容易。

Who interfered with my camera?

谁擅自用过我照相机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同照相版影印出来作品效果是不同。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有照相馆都打了电话, 找到了放大照片要价最低地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了应用广角天体照相似照相天图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人员们用热感应照相机对这些不流汗鸟进行了拍照。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司照相机目镜，由蔡司专为观鸟镜系列制同时捕捉数字式图片设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照相干版适用于各种常规兵器和尖端武器曳光弹道夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微照相技术中，度量副本离原始资料远近程度。第一次缩微后胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去十年中，大量研究证明对强烈应激事件记忆并不是象照相机闪光灯定格那样真实和固定，而是会变化。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度因素。

The family was grouped together for the photograph.

全家人聚在一起照相。

The lens of a camera forms images.

照相机的镜头使图像形成。

The body of the camera makes it highly resilient to outdoor use.

部照相机的机身很适合户外使用。

There is a build-in flashgun in this camera.

个照相机里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿被人照相。

They X-rayed my arm to see if it was broken.

他们给我用X光照相检查看我的胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有人来照相, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的照相机有可调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一种通用的超感方法———用剂对照相潜影进行。

This camera loads easily.

架照相机装胶卷很容易。

Who interfered with my camera?

谁擅自用过我的照相机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同照相版影印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有的照相馆都打了电话, 找到了放大照片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了应用广角天体照相似的照相天图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人员们用热感应照相机对些不流汗的鸟进行了拍照。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司照相机目镜，由蔡司专为观鸟镜系列制造的可同时捕捉数字式图片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照相干版适用于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微照相技术中，度量副本离始资料远近的程度。第一次缩微后的胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去的十年中，大量研究证明对烈应激事件的记忆并不是象照相机的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度的因素。

The family was grouped together for the photograph.

全家人聚在起照相。

The lens of a camera forms images.

照相机的镜头使像形成。

The body of the camera makes it highly resilient to outdoor use.

这部照相机的机身很适合户外使用。

There is a build-in flashgun in this camera.

这个照相机里内个闪光灯。

He is disinclined to be photographed.

他不情愿被人照相。

They X-rayed my arm to see if it was broken.

他们给我用X光照相检查看我的胳膊是否断。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有人来照相, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的照相机有可调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

种通用的超感方法———用还原剂对照相潜影进行还原强。

This camera loads easily.

这架照相机装胶卷很容易。

Who interfered with my camera?

谁擅自用过我的照相机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同照相版影印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有的照相馆都打电话, 找到放大照片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾应用广角天体照相似的照相天历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人员们用热感应照相机对这些不流汗的鸟进行拍照。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司照相机目镜，由蔡司专为观鸟镜系列制造的可同时捕捉数字式片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照相干版适用于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微照相技术中，度量副本离原始资料远近的程度。第次缩微后的胶片为第代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去的十年中，大量研究证明对强烈应激事件的记忆并不是象照相机的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入些其它影响测量精度的因素。

The family was grouped together for the photograph.

全家人聚在一起照相。

The lens of a camera forms images.

照相机的镜头使图像形成。

The body of the camera makes it highly resilient to outdoor use.

这部照相机的机身很适合户外使。

There is a build-in flashgun in this camera.

这个照相机里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿被人照相。

They X-rayed my arm to see if it was broken.

他们给X光照相检查看的胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有人来照相, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的照相机有可调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一种通的方法———还原剂对照相潜影进行还原强。

This camera loads easily.

这架照相机装胶卷很容易。

Who interfered with my camera?

谁擅自的照相机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同照相版影印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

给所有的照相馆都打了电话, 找到了放大照片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了应广角天体照相似的照相天图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人员们热应照相机对这些不流汗的鸟进行了拍照。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司照相机目镜，由蔡司专为观鸟镜系列制造的可同时捕捉数字式图片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照相干版适于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微照相技术中，度量副本离原始资料远近的程度。第一次缩微后的胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在去的十年中，大量研究证明对强烈应激事件的记忆并不是象照相机的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施程中,又引入了一些其它影响测量精度的因素。

The family was grouped together for the photograph.

全家人聚在一起照。

The lens of a camera forms images.

照机的镜头使图像形成。

The body of the camera makes it highly resilient to outdoor use.

这部照机的机身很适合户外使用。

There is a build-in flashgun in this camera.

这个照机里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿被人照。

They X-rayed my arm to see if it was broken.

他们给我用X光照检查看我的胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄师要价太高, 没有人来照, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的照机有焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一种通用的超感方法———用还原剂对照潜进行还原强。

This camera loads easily.

这架照机装胶卷很容易。

Who interfered with my camera?

谁擅自用过我的照机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同照版印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有的照馆都打了电话, 找到了放大照片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了应用广角天体照似的照天图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人员们用热感应照机对这些不流汗的鸟进行了拍照。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司照机目镜，由蔡司专为观鸟镜系列制造的同时捕捉数字式图片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照干版适用于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微照技术中，度量副本离原始资料远近的程度。第一次缩微后的胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去的十年中，大量研究证明对强烈应激事件的记忆并不是象照机的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照法校正飞机无线电罗差不存在场地响,但在实施过程中,又引入了一些其它响测量精度的因素。

The family was grouped together for the photograph.

全家聚在一起相。

The lens of a camera forms images.

相机的镜头使图像形成。

The body of the camera makes it highly resilient to outdoor use.

这部相机的机身很适合户外使用。

There is a build-in flashgun in this camera.

这个相机里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿相。

They X-rayed my arm to see if it was broken.

他们给我用X光相检查看我的胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有来相, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的相机有可调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一种通用的超感方法———用还原剂对相潜影进行还原强。

This camera loads easily.

这架相机装胶卷很容易。

Who interfered with my camera?

谁擅自用过我的相机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同相版影印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有的相馆都打了电话, 找到了放大片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了应用体相似的相图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究员们用热感应相机对这些不流汗的鸟进行了拍。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司相机目镜，由蔡司专为观鸟镜系列制造的可同时捕捉数字式图片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬相干版适用于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微相技术中，度量副本离原始资料远近的程度。第一次缩微后的胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去的十年中，大量研究证明对强烈应激事件的记忆并不是象相机的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度的因素。

The family was grouped together for the photograph.

全家人聚在一起照相。

The lens of a camera forms images.

照相机的镜头图像形成。

The body of the camera makes it highly resilient to outdoor use.

这部照相机的机身很适合户。

There is a build-in flashgun in this camera.

这个照相机里内置了一个闪光灯。

He is disinclined to be photographed.

他不情愿被人照相。

They X-rayed my arm to see if it was broken.

他给我X光照相检查看我的胳膊是否断了。

The photographer priced himself out of the market and had to change his job.

摄影师要价太高, 没有人来照相, 他不得不换工作。

More expensive cameras have adjustable focusing.

比较贵的照相机有可调焦距。

The universal method of supersensitization-reduction latensification of the latent image with reductiones is considered.

一种通的超感方法———还原剂对照相潜影进行还原强。

This camera loads easily.

这架照相机装胶卷很容易。

Who interfered with my camera?

谁擅自过我的照相机?

A printing plate that is produced with photography. There are many types, such as process engraving and artotype.

不同照相版影印出来的作品效果是不同的。

I found the cheapest price for enlarging the photograph by ringing round all the photographic dealers.

我给所有的照相馆都打了电话, 找到了放大照片要价最低的地方。

Early history of the photographic sky maps with wide-angle astrograph is reviewed briefly.12 famous patrol atlases and maps are outlined.

略要地回顾了应广角天体照相似的照相天图发展历史。

They found that "the toucan's bill is capable of acting as a thermal radiator of body heat," Tattersall explained.

于是，研究人热感应照相机对这些不流汗的鸟进行了拍照。

Zeiss Camera Eyepiece DC4 For Diascope Spotting Scopes by Carl Zeiss Observe and Capture Digital Pictures at the Same Time!

蔡司照相机目镜，由蔡司专为观鸟镜系列制造的可同时捕捉数字式图片的设备！

Type 190 Ballistics Longitude-Latitude Photographic Plate (BLL, photoplate) is dedicated for night photography of luminous ballistics of conventional or strategical arms.

190弹道经纬照相干版适于各种常规兵器和尖端武器曳光弹道的夜间拍摄[*]。

In micrographics, a measure of the remoteness of the copy from the original material, the first microfilm representation being the first generation microfilm.

在缩微照相技术中，度量副本离原始资料远近的程度。第一次缩微后的胶片为第一代缩微胶片。

Objectives: Over the past decade numerous studies have provided evidence that memory for highly stressful events is not "flashbulb" in nature, but mutable.

在过去的十年中，大量研究证明对强烈应激事件的记忆并不是象照相机的闪光灯定格那样的真实和固定，而是会变化的。

There is no influence of aerodrome on the calibration of airplane radio compass error with aerophotograph, but it causes some effects on measurement accuracy.

空中照相法校正飞机无线电罗差不存在场地影响,但在实施过程中,又引入了一些其它影响测量精度的因素。