光源的英文：
light source

参考例句：

Who bring brightness to the night sky? Illumination lighting and light source certainly.
谁给夜空带来辉煌？当然是灯饰和光源。

Laparoscopes use fibre-optic lights and small video cameras to show tissues and organs on a monitor.
腹腔镜使用光纤光源和小型摄影机，将组织和器官的情形显示在监视器上。

A unit of illuminative brightness equal to one candle per square meter,measured perpendicular to the rays of the source.
尼特照明亮度单位，相当于每平方米烛光。与光源发出的光垂直来测量

Diffused light source: Any light source which produces indistinct and relatively light shadows with a soft outline .
扩散光源:造成朦胧，边缘柔和浅色阴影的光源。

The intensity of light from any source varies inversely as the square of the distance from the source.
从各光源发出的光的强度与该光源的距离的平方成反比。

The condenser is interposed between the light source and the specimen
在光源和标本之间是聚光镜。

A common laboratory source of light is provided by a mercury arc
通常的实验室光源选用汞弧灯。

By far the most nearly monochromatic source available at present is the laser
目前可用的最接近单色光的光源是激光器。

Interpose a translucent body between a source of light and the eye
将半透明体放在光源与眼睛之间

The rubidium lamps and cells are now obtainable only for replacement
现在能够得到的铷光源和容器仅作备用。

light是什么意思：
n. 光；光源；灯；点火物；日光；角度，眼光
v. 点，点燃；点着；照亮；用灯光指引
adv. 轻的，轻装的
adj. 浅色的；轻的；少量的；轻微的；（负担）轻的；轻盈的，轻快的；清淡的

The torch was lighted.
火炬点亮了。

I'm lost as a light is lost in light.
我如同灯盏迷失在光明里。

The saturation and lightness of light also affect our perceptions.
饱和度和亮度也影响到我们的感觉。

Ambient light: As the name suggests, this light is present everywhere.
环境光：就如其名所暗示，各处都存在光照。

The chamber was ablaze with light.
会议厅里灯火辉煌。

source是什么意思：
n. 来源，出处；原始资料；原因；发源地

They are trying to trace the source of the trouble.
他们正设法找出这件麻烦事的起因。

Where is the source of the Nile?
尼罗河发源于何处？

Is the water polluted at source?
河水是在源头受到污染的吗？

We understand that sourcing is not static.
我们明白采购不是一成不变的。

Religion is not the only source of division.
宗教问题并不是分裂的唯一来源。