光线

A plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the cone.

具有抛物面主镜和双曲面次镜的一种折射式望远镜；光线被集中到主镜中心的孔径。

I tend to like a soft look so I constantly move the light source in a small circular motion.

基本上我倾向于得到一个柔和的光线，所以总是在一个小圆范围内移动光源。

He entered his novitiate to the true wilderness with Sam beside him as he had begun his apprenticeship in miniature to manhood after the rabbits and such with Sam beside him, the two of them wrapped in the damp, warm, negro-rank quilt while the wilderness closed behind his entrance as it had opened momentarily to accept him, opening before his advancement as it closed behind his progress, no fixed path the wagon followed but a channel nonexistent ten years ahead of it and ceasing to exist ten yards after it had passed, the wagon progressing not by its own volition but by attrition of their intact yet fluid circumambience, drowsing, earless, almost lightless.44

孩子就这样进入了熟悉真正的荒野生活的见习阶段，有山姆在他身边，正如他小时候追捕兔子这类小动物度过雏形的见习时期，山姆也陪伴在他身边，这时两人裹在湿漉漉、暖烘烘、散发出黑人臭味的被子里，方才暂时对他开放来接纳他的荒野在他身后合拢了，森林在他前进之前开放，在他前进之后关闭，大车也没有固定的路可走，只有一条仅仅看得清前面十码路的通道，大车走过十码后，这段路也就湮没，这大车并没有按自己的意志往前行进，而是由人和大车所造成的纯净的气流浮托着在往前滚动，大车在打瞌睡，听不见一点声音，也几乎见不到一点光线。45

The southern elevation screens the interior from the driveway and road above, but allows southern light in through the clerestory windows.

南立面有效的保证了业主的私密性的同时，顶上的天窗使得外部光线充分进入。

Studies show that even the tiny light from a digital alarm clock can disrupt a sleep cycle.

根据研究表明即便数字闹钟上的微弱光线也会干扰睡眠周期。

In this lighting, I took this close shot of a rusty chain on a fence.

在这样的光线下，我拍下了围墙上的一根生锈了的铁链。

From deep crimson to cobalt blue, his intense and velvety colours appear to suck up the light around them.

从深红色到深蓝色，他所使用的或浓重或柔软的颜色就像吸收了作品周围的光线。1979年，卡普尔首次在他的雕塑中使用粉状颜料，明显参照了他的家乡印度胡里节上的仪式表演。

Cobia will follow larger animals such as sharks, turtles and manta rays in hope of scavenging a meal.

因数会更大的动物，如鲨鱼、龟和 manta 光线中清除一顿饭的期望。

HAil holy light, ofspring of Heav'n first-born, Or of th' Eternal Coeternal beam May I express thee unblam'd?

将你写成万寿无疆的不灭光线，想必不算亵渎神圣？

They collimate a semiconductor laser beam in two directions respectively .

采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。