It is easier to read by daylight than by lamplight.

日读书比灯读书舒适。

She liked to sunbathe in the seclusion of her own garden.

她自己僻静的花园里晒日浴。

High-pressure mercury lamps were more effective for exciting the photoreaction of naphthalene relative to sunlight.

实验证明,高压汞灯较天然日更能有效地激发萘的反应。

They are luxuriating in sunshine in the garden.

他们花园里尽情地享受日。

Daylight came in through its glass roof;this was now the only illumination.

日透过玻璃屋顶入;眼这是室内惟一的明。

I’ll treat myself to a sunbath.

我要好好地享受一次日浴。

We’ve been sunbathing on the beach.

我们一直海滩上晒日浴。

Cholecalciferol is produced by irradiation of 7-dehydrocholesterol with ultraviolet light either from the sun or from an artificial source.

胆钙化醇是7?氢胆固醇经日或人工来源的紫外线射而产生的。

The frost injury phenomenon of alabastrum, flower and young fruit of sweet cherry were not appeared in solar greenhouse.

日温室甜樱桃没有出现花蕾、花朵并有幼果的冻害现象。

Phthalein acid anhydride Photophobic pharmaceutical and has special protective action on the ultraviolet ray. It can cure sunlight dermatitis, eczema, etc.

酞酐避剂，对紫外线具有特殊的保护功效，可治疗日性皮炎，湿疹等。

This test is conducted to determine the effects of solar radiation on equipment that may be exposed to sunshine during operation or unsheltered storage.

这个测试项目用来确定设备日持续运行或存储情况，对其性能的影响。

An instrument in which a mirror is automatically moved so that it reflects sunlight in a constant direction.It is used with a pyrheliometer to make continuous measurements of solar radiation.

定日镜一种仪器，装有一面会自动调控的镜子，以便不断朝某一恒定方向反射日。

During the spring of one year he was walking tipsily along the street when he saw, in the sunlight at the base of a wall, Whiskers Wang(T26) stripped to the waist catching lice.

有一年的春天，他醉醺醺的街上走，墙根的日，看见王胡那里赤着膊捉虱子，他忽然觉得身上也痒起来了。

In the meantime, absorb many infrared ray, the eye ground that the direct illuminate place of orthoptic sun or intense arc light causes is injured, if common solar sex retina is choroid burnable.

同时，吸收大量的红外线，直视太阳或强烈弧的直接射所造成的眼底损伤，如常见的日性视网膜脉络膜灼伤。