Teachers often chaperon their classes on field trips.

野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好野外露宿数月。

A farmer works outdoors.

农民野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还野外生存，它们几乎全部——或者一半吧，取决于我们如何定义“”个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过野外设置一个观测台阵记录微动信号,然后从观测到的微动信号提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游时老师着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还在野外生存，它们几乎全部集在这里——或者一半集在这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在野外设置一个观测台阵记录微动信,然后从观测到的微动信取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在宿数月。

A farmer works outdoors.

农民在干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲牛还在生存，它们几乎全部集中在这里——或者一半集中在这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在设置一个阵记录微动信号,然后从到的微动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只外露宿数月。

A farmer works outdoors.

农民外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲牛还外生存，它们几乎全部集中这里——或者一半集中这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过外设置一个观测录微动信号,然后从观测到的微动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 好在野外露宿数月。

A farmer works outdoors.

农民在野外干。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

有六百头欧洲野牛还在野外生存，它们几乎全部集中在这里——或者一半集中在这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘法通过在野外设置一个观测台阵记录微动信号,然后从观测到的微动信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在露宿数月。

A farmer works outdoors.

农民在干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲牛还在生存，它们几乎全部集中在这里——或者一半集中在这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过在设置一个观测台阵记录微动信号,然后从观测的微动信号中提取,得的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有欧洲野牛还在野外生存，它们几乎全部集中在这里——或者一半集中在这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

探法是通过在野外设置一个观测台阵记录信号,然后从观测到的信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

在野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既工作又, 好在野外露宿数月。

A farmer works outdoors.

农民在野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

有六百头欧洲野牛还在野外生存，它们几乎全部集中在这里——或者一半集中在这里吧，这取决于我们如何定义“这里”这个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

勘探法是通过在野外设置一个观测台阵记信号,然后从观测到的信号中提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。

Teachers often chaperon their classes on field trips.

野外郊游时老师常看护着班上的学生。

Jobless and penniless, he had to sleep rough in the fields for several months.

他既无工作又无钱, 只好野外露宿数月。

A farmer works outdoors.

农民野外干活。

Just 600 wisent remain in the wild nearly all of them here—or just half depending on what's meant by here.

只有六百头欧洲野牛还野外生存，它们几乎全部——或者一半吧，取决于我们如何定义“”个词。

The Microtremor Survey Method use Microtremor observation to distill surface wave, obtain it's dispersion curve and then get inversion to the underground structure.

微动勘探法是通过野外设置一个观测台阵记录微动信号,然后从观测到的微动信号提取面波,得到面波的频散曲线,最后用频散曲线反演地质结构。