光束

A formula based on FFT is given to study the pulsed spherical beams propagating in free space with the arbitrary cross section.

推导出了利用FFT研究具有任意初始截面的脉冲球面光束的传输方程。

Diffraction Mode of Axicon for Tilted Spherical Wave Beam.

圆锥透镜对倾斜球面波光束的衍射模式。

Effect of spherically aberrated lens on beam quality .

球差透镜对高斯光束质量的影响。

Keep your back and neck aligned so the light finds its way through the core of your spinal column.

保持背部和颈部形成一条直线这样光束就能通过脊柱中心线。

The main different between the Land Raider and the Prometheus is its weaponsry. the quad-mounted heavy bolters in each sponson replace the Land Raider's lascannons.

基本型兰德掠袭者与普罗米修斯型之间最主要的不同在于他们的武器系统，四联装的重型爆矢枪取代了两侧的光束加农炮。

Unlike in the film, however, the comic concludes with Stane committing suicide through a repulsor ray blast to the head rather than facing defeat and imprisonment.

然而与电影不同的是，漫画是以斯坦恩自杀结束的，他向自己的头部发射了打击光束，而不是承认失败并被关进监狱。

Based on the aberration theory of AWG, a new-type flat-field AWG is designed. The focal signals of all wavelengths of operation are focusing along a straight line perpendicular to the propagation direction. Three stigmatic points restrain three dominant geometry parameters. Furthermore, a new-type flat-field wavelength router with both flat input field and flat focal field is also designed.

基于阵列波导光栅的像差理论，利用三个无像差点约束三个主要结构参量，设计了新型平场聚焦阵列波导光栅，使得所有工作波长的输出信号都聚焦在与光束传输方向垂直的直线上，并进一步将其拓展为同时具有平输入场和平聚焦场的新型平场波长路由器。

Three, S, M Series Atomic Absorption Spectrometer using a new Echelle optical system, providing unmatched detection limit; unique four-button background deuterium lamp technology, a more accurate calibration results can be as high as 3A background correction ; patent protection Stockdale two-beam technology, has been very high sensitivity and signal to noise ratio; communicate unique background deduction Zeeman graphite furnace technology; unique ELC Long Life graphite tube; GFTV unique visualization technique by graphite furnace

三、 S 、 M 系列原子吸收光谱仪采用全新的中阶梯光栅光学系统，提供无与伦比的检出限；独特的四线氘灯扣背景技术，校正结果更准确，可校正高达3A 的背景；专利保护的 Stockdale 双光束技术，得到极高的灵敏度和信噪比；独特的交流塞曼石墨炉扣背景技术；独特的 ELC 长寿命石墨管；独特的 GFTV 石墨炉可视技术

S, M Series Atomic Absorption Spectrometry in a new Echelle optical system, providing unparalleled detection limit; Four unique background deduction of deuterium lamp technology, the results more accurate calibration can be as high as 3A background correction; Patent protection Stockdale dual-beam technology, are the sensitivity and high signal to noise ratio; unique exchange Zeeman background deduction graphite furnace technology; ELC unique long-life graphite tube; GFTV unique graphite furnace visualization technique

一、 S 、 M 系列原子吸收光谱仪采用全新的中阶梯光栅光学系统，提供无与伦比的检出限；独特的四线氘灯扣背景技术，校正结果更准确，可校正高达3A 的背景；专利保护的 Stockdale 双光束技术，得到极高的灵敏度和信噪比；独特的交流塞曼石墨炉扣背景技术；独特的 ELC 长寿命石墨管；独特的 GFTV 石墨炉可视技术

The method of complex amplitude superposition was adopted, it was derived the intensity of light distribution formula about interference fringe correspondence reflected light or transmission light, thence the effect of stripy visibility and sharpness was studied .when incidence direction of monochromatic light isn't vertical arrow on thin film surface, both reflected light and transmission light were partially polarized light , therefore accurately result need be taken into account polarized character when interference in practical thin film was studied .

采用复振幅叠加方法得到反射光和透射光形成干涉条纹对应光强分布公式，然后研究了多光束干涉对条纹的可见度和锐度的影响。

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％。