光束

A crisscross of energy beams blurred in front of the cameras.

十字交叉的能量光束在摄像机前模糊不清。

Analysis results show that the measurement error caused by the small change of beam cross angle can be neglected.

研究了补偿OEHF—LDA测量点移动的光学方法，并分析了光束角度变化对测量精度的影响，在此基础上提出了OEHF—LDA的光路设计方案。

The pinhole lets through only a small cross section of the beam and thus "looks" at one point in the image at a time.

这个小孔1只让一个小的光束交叉部分通过，因此一次只能"看"图像的一个点。

The influence of the cross—fire of signals in the LSSDV three—beam measuring model is analysed in detail. According to the characteristics of the model, the idea that arranging optical system and receiving system properly so that the cross—fire of signals can be neglected is presented.

详细分析了LSSDV三光束测量模型中信号串扰影响问题，根据该模型的特点，提出了适当布置光学系统和接收系统的位置，可以忽略信号串扰影响的新见解。

The measuring device is structured by including a He-Ne laser; a beam expander, a soft aperture slot and a off-axis parabolic mirror to be measured are arranged in turn along the direction of the emergent laser beam direction of the He-Ne laser; a standard cross hair and a micro objective are arranged in turn on the direction of the reflected beam of the off-axis parabolic mirror; the micro objective is arranged on the focus of the off-axis parabolic mirror; the focus is imaged on an area array CCD; the output end of the area array CCD is connected with a computer; the off-axis parabolic mirror is fixed on a five-dimensional electric adjusting frame.

一种离轴抛物面镜点聚焦能力测定装置和测定方法，测定装置的构成包括：一台He-Ne激光器，沿该He-Ne激光出射激光束方向依次设置扩束器、软边光阑和待测的离轴抛物面镜，在该离轴抛物面镜的反射光束方向依次设置标准叉丝和显微物镜，该显微物镜位于所述的离轴抛物面镜的焦点，所述的焦点成像于面阵CCD上，该面阵CCD的输出端接计算机，所述的离轴抛物面镜固定在一五维电动调整架上。

ZEMAX software is used for optical ray tracking of the system to get images after cylindrical lens.

利用ZEMAX光学软件对系统进行光线追迹获得光束经过柱面镜后的聚焦情况。

Finally, the values of the OAM of the beam light which have transmitted through the cylindrical lens are also calculated and the results are discussed.

利用傍轴近似计算了这两种偏振态光束通过一个柱面透镜后所具有的轨道角动量。

The relative space relationship of the datum line and mask is represented by the beam from GRIN lens .

利用自聚焦准直镜的出射光束反映基准线与模板的相对空间关系。

Locked himself in his room and built a sonic death ray.

sonic：音波的，音速的 ray：光束，光线把自己锁在屋里做了个音速死亡放射线仪。

This kind of grating can focus light beam, simplify the system's design and structure of the instrument, obviously decrease its volume and cost.

此种光栅具有光束汇聚功能，简化了系统的设计和仪器的结构，大大地减小了仪器的体积和成本。

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％。