Phase Array Radar can scan beams fast by controlling the phase of radiator elements in the antenna aperture surface, which shows many excellences such as agility, change celerity and multifunction.
相控阵雷达通过电的方式控制天线孔径面上各辐射单元的相位变化，以实现波束的快速扫描，使其具有灵活、变化快速、多功能等优点。
But the principle of focusing rays through an aperture onto a two-dimensional surface remains the same.
但其原理通过孔径聚焦光线在一个二维表面是保持不变的。
A method is introduced for testing stray light coefficient, vignetting coefficient and image surface uniformity optical system with large aperture and long focal length.
叙述一种用于测试大口径、长焦距光学系统杂光系数、渐晕系数、像面照度均匀性等光学参数的检测方法。
The reflection effect of the spherical surface of a hemisphere solid immersion lens (SIL) has been investigated using the vectorial diffraction theory for high numerical aperture systems.
应用高数值孔径系统的矢量衍射理论研究了半球形固体浸没透镜(SIL)球面表面的反射对SIL系统透射场的影响。
An inspection approach to surface cracks of the aperture on an aeroengine labyrinth disc is studied based on the industrial videoscope in this paper.
针对航空发动机篦齿盘均压孔上产生的表面裂纹，采用基于工业视频内窥镜的孔探技术对其进行自动视觉检测。
Secondly, on the assumption that the phase error on the aperture led by the random surface error obeys the Gaussian distribution with zero mean, the expression of the average power pattern is deduced.
然后在设定由随机表面误差引入的口径相位误差服从均值为零的正态分布的条件下，推导了天线平均功率方向图的计算公式。
At least one aperture extends through the substrate from the first surface to the second surface, and has a first open area.
至少一个孔口从所述第一表面至所述第二表面延伸通过所述基底，并具有第一开口区域。
The component has a first coating on at least one of the first surface and the second surface adjacent to the at least one aperture.
部件具有在邻近所述至少一个孔口的所述第一表面和所述第二表面的至少一个上的第一涂层。
It is a key step of manufacturing the large relative aperture aspherical surface to make a breakthrough at the technology.
突破这一技术是研制大相对孔径非球面的关键环节。
The surface figure precision of the primary mirror in a large aperture telescope is a key factor influencing the imaging quality.
大口径望远镜主镜的面形精度是影响望远镜成像质量的关键因素之一。
In this paper, the acoustic impedance caused by the sound radiation at the terminals of the aperture, which is laid on the cylindrical surface, is analysed on the base of rigorous sound theory.
本文根据严格的声学理论，分析了圆柱面上小孔端面由于辐射所产生的声阻抗率。
And then they oviposited in the soil of the clearing nearby, and left over an eyeable aperture on the surface.
然后选择附近杂草稀少的空地产卵，于土壤表面留下产卵孔。
The capillary condensation appeared when the alcohols were adsorbed in the MOF508 which had big specific surface area and narrow aperture.
在比表面积大、孔径小的MOF508中，醇类的吸附会产生毛细凝聚现象；
A blackbody furnace of heat-pipe surface source with large aperture was developed for the calibration of infrared image optical systems.
针对红外成像光学系统校正，研制了大口径热管面源黑体炉。
It is necessary to combine several methods to test the spherical surface with small curvature and large aperture.
小曲率大口径球面的检验需要使用几种检验方法。
When the pad area is greater than 66 percent of the aperture wall surface area, the probability of achieving efficient paste transfer is increased.
当焊盘面积大于孔壁表面积的66%。提高锡膏有效转移的可能性。
The Gravity deformation of large aperture optical cell greatly affect the optical surface test and the optical system performance.
大口径光学元件的重力变形对元件检测和光学系统性能影响很大。
While AlAs oxide confined aperture may reduce the threshold current of vertical-cavity surface emitting lasers (VCSELs), it might also enlarge the series resistance of the VCSELs.
含氧化限制孔的VCSEL具有低的阈值电流，但氧化孔的存在也会加大串联电阻。
Whereas this phenomenon didn't show in the J370 with small specific surface area and narrow aperture or J372 with big specific surface area and wide aperture.
比表面积小、孔径小的J370和比表面积大、孔径大的J372中不会产生这样的现象。
The sorption agent has an integral type self-supporting metal oxide framework, high specific surface area and even aperture distribution.
该吸附剂具有整体式自支撑金属氧化物骨架结构，比表面积高且孔径分布均匀。
Juncture of floor spelling a flower is answered neat, aperture width is consistent, the surface is clean, without excessive glue phenomenon;
拼花地板接缝应对齐，缝隙宽度一致，表面洁净，无溢胶现象；
Synthetic Aperture Radar (SAR), as a kind of active remote sensor, is a system that can scan and image earth surface object in a high resolution using its EM wave.
合成孔径雷达（SAR）作为主动式遥感器，是一种利用雷达本身发射的电磁波进行高分辨率成像的系统。
Synthetic Aperture Radar (SAR), as a kind of active remote sensor, is a system that can scan and image earth surface object in a high resolution using its EM wave.
合成孔径雷达（SAR）作为主动式遥感器，是一种利用雷达本身发射的电磁波进行高分辨率成像的系统。
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