光束

The method has the advantages of simple light path, convenient adjustment, high accurate measurement and easy data processing.

提出测量光学系统单色光畸变的一种新方法，采用的是造价低廉、制作简便的非线性全息光栅作标准多平行光束发生器。

The finite-difference time-domain method was used to simulate the propagation of P polarized light Gaussian beam in a single subwavelength metallic slit surrounded by gratings.

利用时域有限差分方法，模拟了P偏振光高斯光束入射到金属银亚波长细缝与光栅结构的透射情况。

RH lower fuel tank mold locker snow blower trash can w/power cords 2-boxes w/ consumables from bonding 3 fuselage metal holders 1 boom metal holder 1 air compressor office chairs large empty cabinet small empty cabinet 3'*4' utility cart 4 beams 37 long box w/glove,mixing cups ets.

相对湿度较低的燃料箱模具更衣室雪风垃圾桶瓦特/电源线 2盒瓦特/消耗品从粘接 3机身金属持有人 1繁荣金属持有人 1空气压缩机办公椅大型空柜小空柜 3 '* 4 '工具车 4光束37 长中瓦/手套，搅拌杯您。

As is known in the art, etendue is a function of the area of the emitting source and the solid angle that the light beam includes.

如在本领域中已知的那样，光学扩展性随着发射源的面积和光束所成的立体角而变。

The analytical solution formula of the light-intensity oscillation variance of multiple beams is deduced.

并在此基础上形成多光束光强起伏方差的解析表达式。

The Southwell model is proved a high precision wavefront reconstructed algorithm. The relations between the precision of wavefront reconstructed and the parameter of wavefront sensor are studied.

研究了波前传感器参数、入射光束参量对波前重构精度的影响，提出了菲涅耳波带片的合理阵列数目。

You can see that the light is really bright across from you, but you don't perceive how your brain translates this information into a feeling of spaciousness.

你可以发现穿过你身边的光束是那么得明亮。但你还没有察觉你的大脑如何将这些信息转换为一种宽敞的感觉。

The effects of spatial distribution on the experimental results are studied in spectrally resolved two-beam coupling pump-probe technique.

在测量非线性折射率和双光子吸收系数的频率分辨双光束耦合抽运探测技术中，光场的空间分布没有得到考虑。

It is simulated numerically the transmission of beams phase modulated and spectrally dispersed by the unit for smoothing by spectral dispersion put in the laser driver for inertial confinement fusion.

用数值方法研究了激光驱动器系统中使用光谱色散平滑单元后光束的衍射特性。

The results show that the diffraction spot of a spectrally dispersed beam becomes larger and its near-field uniformity is improved,while there exists area where the intensity is nearly even within the far-field spot.

模拟结果表明，光谱色散会使光束衍射光斑变大，近场空间强度均匀性改善，而远场光斑内部存在光强接近于均匀分布的区域。

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％。