查询词典 aperture ratio

It has some prominent merits compared with ordinary prismatic elements: AOTF is small and light, its structure is solid without moving parts, both the clear aperture and the incident angular aperture are big, high diffraction efficiency, it can be tuned neatly and fast in the wide field.

同时具备空间分辨能力和光谱分辨能力的光谱成像技术是图像分析技术与光谱分析技术的完美结合。

A fan-shaped aperture mask was designed, the aperture mask cooperate with a 3-axies worktable, makes up the micro-drilling system.

设计了扇形掩模，依据三轴联动加工台，设计了掩模钻孔加工系统，在此基础上研究了掩模旋转钻孔的加工参数。

Finally, a two-mask process was attempted to extend the same concept of the chip process. Here the mask of the contact aperture was replaced by the mask of the LED pad. After etching the SiO2 and ITO in the aperture region, a lateral etch of SiO2 was made to increase the ITO contact area. Although the forward voltage of the GaN LED shows a normal value, the process yield is still low and requires further study.

二道光罩制程延伸了三道光制程的理念，只是因为透明导电层的圆孔图形，是用电极的光罩去开的，所以蚀刻完二氧化矽膜及氧化铟锡膜后，必须再做二氧化矽膜的回蚀刻，让二氧化矽再内缩进去，以增加氧化铟锡和电极的接触面积，不会造成发光二极体的顺向电压提高，但因制程良率太低，所以还须要继续研究改善。

A group of standard reticules are fabricated by binary optics to scale defects. The resolution of the optical system of defects-microscopic scattering imaging is better than sub-micrometer and the view field of a sub-aperture is about 3 mm. An image array of 5×5 sub-aperture is obtained by two-dimensional scanning system.

最终利用该变倍光学显微镜散射成像系统得到能分辨微米量级表面疵病的图像，其单个子孔径物方视场约为3 mm，对X，Y两方向进行5×5子孔径图像扫描成像，并给出了与标准比对的定量数据结果。

The light intensity distribution was characterized by Fraunhofer diffraction when the projection of light source located in the symmetry center of rectangular aperture and the size of aperture is small enough .

根据菲涅尔-基尔霍夫衍射积分得出矩孔菲涅尔衍射的光强分布表达式，对该表达式作了数值计算，分析了矩孔尺寸对衍射光强分布的重要影响。

Synthetic aperture radar ; curvilinear synthetic aperture radar ; motion compensation ; feature extrac-tion

合成孔径雷达；曲线合成孔径雷达；运动补偿；特征提取

The results show that, when the volume of the secondary room is 1/3 of that of the primary room,the sound energy decay in the primary room is greatly in- fluenced by the secondary room at an aperture size of less than 10% of the wall,that the energy decay curve and the coupling con- stant in the primary room gradually change with the aperture size,and that the effect of the secondary room on the acoustics in the primary room is uniform.

发现在耦合空间体积与主厅体积比为1/3的条件下，当耦合窗面积与隔墙面积比小于10%时，耦合空间对主厅的声能衰减有较大影响；主厅的声能衰减曲线和耦合常数随开口的改变而逐渐发生变化：耦合空间对主厅各点音质的影响比较均匀。华南理工大学物理科学与技术学院；华南理工大学物理科学与技术学院广东广州 510640；广东广州 510640

Based on large aperture Nd∶YAG slabs and dichromatic coatings, a high-efficiency V-shaped active-mirror laser was designed, which was composed of four modules with two large-aperture Nd∶YAG slabs in each module.

基于大口径片状Nd∶YAG介质，采用双色膜技术设计并研制了高效率V形有源镜激光器。该激光器有四个模块，每个模块包含两片大口径Nd∶YAG片状介质。

This paper describes the necessity and development of infrared / millimeter wave dual mode guidance technology, explores the principle and feature of IR /MMW dual mode noncommon aperture complex guidance, common aperture complex guidance and IR / MMW dual mode receptor of energy.

介绍了红外/毫米波双模制导技术的必要性及发展情况，探讨了红外/毫米波双模分口径复合制导、共口径复合制导和红外/毫米波双模集能器的工作原理及特点。

One or both of transmit and receive aperture controls may include preventing some element of the transducer array from transmitting or receiving, calculating weighting apodizations to combine with standard apodizations for each frame, or determining an aperture size based on an f-number for the transducer array for each frame.

发射和接收孔径控制中的一个或二者可以包括：阻止换能器阵列中的某个元件进行发射或接收，针对每一帧计算加权变迹以将其和标准变迹相组合，或者针对每一帧根据换能器阵列的F数来确定孔径尺寸。

Summary In copyright infringement cases,if the alleged infringer uses or even plagiarizes the copyrighted works or parts thereof,which causes no substantially adverse effect on the normal exploitation of the work,nor does it inflict any substantial damages to the right owner,the de minis doctrine should be applied to exempt the liabilities of the defendant and seek the balance of interests between the right owner and the general public embodied by the copyright law.

在侵犯著作权案件中，如果被控侵权行为人虽未经著作权人的同意，使用甚至抄袭了受著作权保护的作品或作品的片段，但若情节轻微，未对该作品的正常使用产生任何实质不利的影响，亦未对权利人的权利造成实质性的损害，则应适用&不计琐细原则&，免除行为人的责任，以寻求在权利人利益与著作权法所体现的社会公共利益之间的平衡。

This new product will become our best seller.

这个新产品会成为我们最畅销的产品。