The calotype was revolutionary in its use of chemically treated paper in which areas hit by light became dark in tone, producing a negative image.

卡罗摄影法对化学处理纸的使用是革命性的，其中光照区域色调变暗，形成负像。

youdao

I will go around the city of Dalian by light—rail vehicle instead of subway because I haven't taken it before.

因为之前没坐过地铁，所以我会坐轻轨车环绕大连市区。

youdao

Many lasers are pumped by light.

许多激光器是用光来激发的。

youdao

The body lay near the window, where the animal had left it when frightened away by the light and sound of the rifle.

VOA: special.2009.10.31

And these rings are indicative of the crystal structure of nickel and can be explained only by invoking wavelike properties of light.

这些光圈,表明了了镍的晶体结构,而且只能通过,光线中波的特征来解释。

麻省理工公开课 - 固态化学导论课程节选

We know that UV light gets absorbed by glass, so it shouldn't be able to go through the glass.

我们知道紫外光会被玻璃吸收，所以它无法通过玻璃。

麻省理工公开课 - 化学原理课程节选

Detectives believe she was struck by light coloured Volvo XC90 registered between 2003 and 2007.

BBC: Jade Clark

Our entrepreneurial know-how and financial technology are ahead of everyone else's by light years.

FORBES: Digital rules

First, a block of material whose chemistry can be altered by light is made.

ECONOMIST: Microelectronics grows up