查询词典 aperture ratio

We have developed an array-based method to detect and locate sources of the hum, using a propagating wave approach, the dispersive properties of Rayleigh waves and data from two large aperture arrays of very long period seismometers, in California and in Japan.

我们发展了基于阵列的方法来对地球的&hum&进行检测和定位，使用了波传播的方法和瑞利波的频散特性并利用了在加州和日本的两个超长周期、大孔径的地震阵列记录到的数据。

Electromagnetic compatibility and Radio spectrum Matters;ElectroMagnetic Compatibility standard for Very Small Aperture Terminal, Satellite News Gathering, Satellite Interactive Terminals and Satellite User Terminals Earth Stations operated in the frequency rangesbetween 4 GHz and 30 GHz in the Fixed Satellite Service FSS

您当前所在的位置：首页→标准大全→欧洲电信标准→电磁兼容和无线频谱事务甚小孔径终端，在固定卫星业务中运行于 4 GHz和30 GHz频率范围的卫星新闻采集，卫星交互终端和卫星用户中断地面站的电磁兼容标准

The propagation of Gaussian bea ms through a paraxial ABCD optical system with hard edge aperture is studied. In the treatment the rectangular function is expanded into a sum of complex Gaussia n functions, thus the approximate analytical propagation expression can be deriv ed.

对高斯光束通过有硬边光阑近轴 ABCD光学系统的传输进行了研究，采用将矩形函数展开为复高斯函数的技巧，推导出了近似的解析传输公式。

A ring coded aperture microscope for high resolution imaging of high-energy Xrays .

编码孔径成像系统中的点扩散函数。

An Iterative Algorithm of Multi-Aperture Transformation and Connection Technique in Cylindrical Coordinates .

圆柱坐标系下的多孔径扫描拼接技术的迭代方法。

A compound camera lens with a relatively high aperture .

带有相对高孔径的照相机复合镜头。

The design principle of the laser receiver with wide FOV for the laser command guidance and laser-beam riding guidance is introduced. A mathematic model of receiving light field is presented. The formula for the viewing angle of the detecting optical system was derived according to the diffraction light field of the oblique incidence parallel light. Taking a detecting optical system with the collecting objective for example, the design characteristic that the receiving optical system needs not only an extra large relative aperture but also an unvignetting receiving performance is discussed on the premise of meeting the requirement of 1064nm WFOV laser receiver.

介绍激光指令制导和激光驾束制导的大视场激光接收机的设计原理，给出接收光场的数学模型，由斜入射平行光的衍射光场推出探测光学系统的视场角公式，根据1064nm大视场激光接收机技术要求，以聚光物镜型探测光学系统为例，探讨接收光学系统既须具备特大相对孔径，又须具备无晕接收性能的设计特点，采用窄带干涉滤光镜进行光学滤波降噪。

The quadratic aperture of the cat's-eye diaphragm is imaged too large.

猫眼光栏的方形光孔成象太大。

Means ISO speeds of under 100, which means that a tripod, cable release and mirror lock-up are a necessity when combined with the use of the lens' optimum aperture.

花了那么多钱，你一直想得到最佳解像度的图片，不是吗？当使用最佳光圈时，你还应该同时使用ISO100或者更低速的胶卷（如ISO50的 FUJI VELVIA －译者注），相机的反光板锁定功能，三角架，以及快门线。

Of course using such film means ISO speeds of under 100, which means that a tripod, cable release and mirror lock-up are a necessity when combined with the use of the lens' optimum aperture.

当使用最佳光圈时，你还应该同时使用ISO100或者更低速的胶卷（如ISO50的 FUJI VELVIA －译者注），相机的反光板锁定功能，三角架，以及快门线。

For you say, My doctrine is pure, And I am clean in Your eyes.

11：4 你说，我的道理纯净，我在你眼前清洁。

The method takes make water sedimentary in patient of be in hospital of leucocyte grow in quantity 30, according to clean middle make water bacterioscopy result, distinguish the patient to affect group and blame infection group, pathology of puncture of farther travel kidney analyses blame infection form.

方法取尿沉渣中白细胞增多住院患者30例，根据清洁中段尿细菌检查结果，将患者区分为感染组和非感染组，非感染组进一步行肾穿刺病理分析。