光束

A clear image of what might be an alien or ET in a space suit can be seen in one cave painting along with a classical flying saucer shaped UFO that appears to be either beaming something down or beaming something up, in what might be an ancient UFO abduction scenario.

一个清晰的影像可能是一个外星人或ET，著住太空装能在一洞穴画作中被看到，沿着有一只古典的飞碟形状的不明飞行物，它像在以光束射低或射高东西，可能是一幅古代的不明飞行物绑架景况，一力场或某种东西的曳被见在不明飞行物的后方。

G- F A clear image of what might be an alien or ET in a space suit can be seen in one cave painting along with a classical flying saucer shaped UFO that appears to be either beaming something down or beaming something up, in what might be an ancient UFO abduction scenario.

H 一个清晰的影像可能是一个外星人或ET，著住太空装能在一洞穴画作中被看到，沿着有一只古典的飞碟形状的不明飞行物，它像在以光束射低或射高东西，可能是一幅古代的不明飞行物绑架景况，一力场或某种东西的曳被见在不明飞行物的后方。；

The experiment results show that the device is appropriate for the micro-laser In order to optimize the design of the resonator cavity in the high-pressure discharge gas laser, an Eigenvector Method for calculation of optical resonator modes and beam propagation is brought forward.

为了更好地设计高气压放电激光器的谐振腔结构，提出了一种新颖的模拟光腔模式及光束传输的特征向量法。

At first sight, laser beams and charged particle beams do not seem well suited for particle acceleration.

乍看之下，雷射光束和带电粒子束似乎并不适用于粒子加速上。

For the optical system with circular apertures,it is difficult to get the boundary radical slope of phase and the accurate sampling value in the circular domain boundary when the intensity transport equation is used to recover the original phase.

1引言相位恢复是指利用光束传播时所探测到的光强信息反演出相位[1]，为了获得更多的光强信息以把相位恢复到最佳，一次光强测量是不够的，因此这就要求在光学系统的输出或成像光轴方向上进行多次光强测量。

658In the cone of the searchlight behind the coalscuttle, ollave, holyeyed, the bearded figure of Mananaun Maclir broods, chin on knees.

658（在投射到煤篓后面的探照灯那圆锥形光束里，马南南。麦克李尔将下颚托在膝盖上，沉思默想着。

In this OPU, we use a triplet lens to collimate the laser beam.

在该系统中，我们采用三片式准直镜来对光束进行准直。

So DOE is used in transmitting and receiving optics of laser radar,which can not only collimate laser beam,but also can transform and shape the laser wavefront.

将衍射光学元件用于激光雷达的光学系统上，不仅可以实现对激光光束的准直，同时还可以对光波波前进行变换和整形。

To meet the technical requirements of KM6 solar simulator optical adjustment system, two kinds of schemes are put forward to collimate the semiconductor laser beam.

根据KM6太阳模拟器光学装校系统的技术要求，文章提出了半导体激光器输出光束的两套准直方案。

Heteroaxial double half-cylindrical lens collimate beam of laser diode ［J］.

异轴双半圆柱透镜准直半导体激光光束［J］。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。