光线的

The relationship between wavelength and numerical aperture is valid only for increased resolving power when light rays are parallel.

当光线是平行时，波长与 numerical aperture 的相关性在增加解析度时才会有效。

The condition of the normal eye when parallel rays are focused exactly on the retina and vision is perfect.

屈光正常当平行光线恰好聚焦于视网膜并形成清晰视觉时正常眼睛的状态

Focal power tells us .what a lens dose to parallel rays.

焦点光度表示透镜对平行光线所起的作用。

An analysis is made about Descartes rays of transparent round-section fibers——a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.

分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象———笛卡尔线现象。

An analysis is made about Descartes ray s of transparent round-section fibers——a special internal surface reflection rays of the fiber when parallel rays strike the fibers perpendicularly to fiber axis.

分析了透明圆形截面纤维在垂直纤维轴光线照射时纱维内表面反射光的一种特殊现象———笛卡尔线现象。

His work in this direction was motivated by his interest in light and in the design of pendulum clock.

他对光线研究和钟摆设计的兴趣推动了他在这方面的工作。

Instruments used in the study included a photometer, a phonometer, a V8 camera, a heart rate monitor, a respiration monitor, and a blood oxygen saturation monitor.

研究先后测量新生儿加护病房原有包布覆盖状态，包布覆盖保温箱上方、后方和侧边1/3处及移除包布，三个情境保温箱内光线照度、音量、早产儿的心跳速率、呼吸速率及血氧饱和度。

The intensity of a source of light,such as an eletric liht bulb,can be measured with a photometer.

光线来源，如一个电灯泡的强度，可由光度测定器测出。

In a daze, Wang turned the little green knob on the photophone to confirm.

一阵恍惚，王转了一下光线电话上的小绿旋钮表示确认。

According to the physical optics theory, the light will reflect and refract at the interface of the different medium.

根据物理光学原理，在不同介质界面处光线会发生反射和折射，从而得到振动方向相互垂直的s偏振光和p偏振光。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。