查询词典 aperture

In the experiments of Rayleigh laser guide star for adaptive optics on altazimuth Coudé telescope, the technology of LGS launched and received in the common aperture using polarizing beam splitting scheme is researched.

在地平式折轴望远镜上开展自适应光学瑞利激光导星实验，研究了信标光束同孔径发射和接收偏振分光技术。

The size of the anchor bolt cleading and the aperture therein should be identical with that of the base plate in the upside structure.

地脚螺栓的套板，其尺寸及套板上的开孔与日后上部结构中柱脚底板的尺寸及开孔相一致。

The results abtained will provide a basis for the design of AOTF with large angular aperture.

本文所得结果对改善大角孔径的声光可调谐滤波器设计提供了理论依据。

Solid angular aperture of non-collinear acousto-optic interaction tunable filter［J］.

非同向互作用声光可调谐滤光器的立体角孔径［J］。

Though analysis and comparison,the appropriate angular aperture of runner and the interrelationship between overflow and exhaust system were achieved for the circular die casting.

分析比较得出适合圆形压铸件浇注系统设计时的横浇道张角夹角范围，以及溢流槽与排气槽之间位置尺寸相互影响的关系。

The calculations show that the approximation for the birefringence and the rotatory property of interaction material leads to an error in the optimum incident angle for TeO2 more than 10%, a diviation in fa-λ0 relation from experiment results, and make the spectral resolution and angular aperture of the device to be degrade.

结果指出，在该波长下，对晶体双折射取近似表达式和不计入晶体的旋光特性，对光波最佳入射角θi的选取(在θi小于60°的范围内)，将引入大于10%的误差，这个误差由于涉及到是否满足动量匹配条件，因此会对器件的性能有直接的影响。

Framing shadowgraphy of UV laser probing with the 4th harmonic Nd-YAG Laser was developed for the diagnosis of Z-pinch plasmas. This system can effectively shield visible light and has advantages of high temporal resolution,large optical angular aperture and wide measuring range.

采用Nd-YAG激光器的四倍频激光(266nm)设计了激光探针分幅阴影成像系统，该系统具有时间分辨率和收光效率高，测量范围大，可有效屏蔽可见光干扰的优点，在钨丝阵实验中成功获得晚期内爆等离子体的分布图像。

Proceedings from the theory of geometric optics,the condition adaxial noncoherent imaging of Fizeau opticalsynthetic aperture imaging system is derived to achieve diffracion limited performance over a finite field of view,and the conclusion is that the angular magnification of the individual telescope must be equal to the linear demagnification factor.

从几何光学理论出发，详细推导了斐索型光学合成孔径成像系统的近轴非相干成像条件，即子望远系统的角放大率等于系统的线性缩放因子。对于焦平面上的像点而言，合成孔径成像系统可等效为一个带有特殊形状孔径光阑的望远系统，这要求该孔径光栏的开口形状和位置分布与合成孔径成像系统各子系统孔径大小和位置分布相一致。

The basic principles for largely aperture PEPC with thinness crystal plane have been expounded.2. It is the first times to use horniness anodize aluminum film as the isolator of plasma in P.R.China. The life-time and breakdown voltage of anodize aluminum film have been tested.

国内首次成功将硬质阳极化膜用于等离子体绝缘，实验研究了阳极化膜的寿命和击穿电压特性；将等离子体绝缘的最低阳极化膜厚优化到了60μm(美国LLNL的选择为100μm)，解决了国内工程实施的可行性问题。

By using antifoam agent and air-entraining agent in turn to dispose polycarboxyl acid water-reducer,the quality of the aperture structure of concrete is improved,its air amount contained is controlled and the expected effect is produced.

依次使用消泡剂和引气剂对聚羧酸减水剂进行处理，使所生产的混凝土的孔结构质量得以提高，含气量得到控制，达到了预期效果。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。