光束

The light beam passes through the container holding the vapor.

光束通过盛蒸汽的容器.

For a wiggly-line trace , the beam is focused on the scope face at a point.

对于波形道, 光束在荧光屏面的一点上聚焦.

The light beam can be steered more accurately than a mechanical cutter.

这种光束比机械切削器能运转得更为精确.

Like the searchlight beam, the radio beam cannot be made very sharp; it tends to spread.

无线电射束也象探照灯的光束一样, 是不能高度集中的; 它总要散开.

The light beam is scattered by small particles in the moving fluid.

光束被流动流体中的微粒所散射.

A startled face blinked up into the beam.

一张受惊的面孔在电筒光束的照射下眨巴着眼睛.

A flashlight beam probed the underbrush only yards away from their hiding place.

一束手电筒的光束在离他们的藏身之地只有几码远的灌木丛里搜寻着。

We first take up the subject of optic ray propagation through a variety of optical media.

首先研究光束通过各种光学介质的传播问题.

We will consequently refer to it as the beam'spot size ".

我们将它称为光束的 “ 光斑尺寸 ”.

He then shines a narrow beam in horizontally through the pinhole.

然后他通过小孔水平地射入一窄光束.

The energy of the scattered light is abstracted from the original beam.

散射光的能量取自原来的光束.

The lighthouse beam was quite distinct in the gathering dusk.

灯塔的光束在渐浓的暮色中清晰可见。

These gas lasers give off a continuous beam.

这种气体激光器产生连续不断光束.

A beam of high radiant power will have high divergence.

高辐射功率的光束会有高的发散度.

The intense light may cause burns.

强烈的光束可能引起烧伤.