查询词典 angular aperture

The conclusion is that the extent of the zenith blind zone was restricted by three parameters: maximum azimuth angular velocity of tracking mount, flight level and airspeed of the target. In astronomical coordinates (reference mark is north latitude 43.9 ), analyzed is the effect of azimuth angular velocity, acceleration and altitude angular velocity, acceleration etc. Some formulae were given to compute all correlative quantities.

在观测坐标系中推导出确定天顶盲区理论范围公式和满足过天项跟踪条件的关系式；在天文坐标系中以长春卫星观测站(北纬43.9°)作为计算基准，分别讨论了方位、俯仰方向的角速度、角加速度等对天顶盲区的影响，在理论分析上为解决过天顶跟踪问题打下了基础。

Based on this equation, the calculation formular of the walking beam's swing angular displacement, angular velocity, angular accelaration and the distance, velocity, accelaration in the hanging point movement are obtained.

以兰通产CYJ2.726B型抽油机为例进行了计算，并在0°～360°曲柄转角范围内绘制了悬点运动速度和加速度的变化曲线，从而给出了游梁式抽油机悬点运动参数计算的一种方法。

And analysis the output curve after improving, and in the same time, the difference in the corresponding angular speed, angular acceleration, angular displacement curve of the bilateral symmetry components will obviously decrease.

并分析改进后的输出曲线，在同样的时间段内左右对称传动构件相应的角位移、角速度以及角加速度之间的差异明显减小。

On the basis of the modeling and analyzing of the transmission system of the PQS-3-D elevator for car in the preamble, this article analysis the reason of the small difference of the angular speed, angular acceleration, angular displacement curve between the bilateral symmetry components. Actually, it is the result of that the torsional rigidity of the bilateral drive shafts are different, therefore has made the revision suggestion to the drive shaft parameter.

在对PQS-3-D型汽车专用升降机传动系统建模分析的基础上，分析左右对称传动构件的角速度、角加速度、角位移曲线在系统起动时间内有较小差异的主要原因，发现是由于左右传动轴的扭转刚度系数不同造成的，故对传动轴的参数做了修改建议。

ABSTRACT In this dissertation a number of theoretical and technical problems to be faced in applying synthetic aperture techniques to remote sensing of the earth are resolved, researching on synthetic aperture microwave radiometric imaging technology against the background of developing satellite microwave radiometric imaging system.

全文主要以星载微波辐射成像系统的研制为背景，对合成孔径微辐射成像技术进行了研究和探索，解决了将合成孔径技术移植到地球遥感领域存在的一些具。。。

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。

It was found that for large aperture ratios (the ratio of focal length of the primary to its aperture, as the f-ratio in modern cameras for instance), f/10 or more, the difference between spherical and paraboloidal mirrors was negligible in the performance of the telescope.

结果发现，大口径的比例（比例焦距初级到其孔径，由于架F -比率在现代相机举例来说）， f/10或更长时间，之间的差别球面和抛物面反射镜是微不足道的，在表现望远镜。

The result indicates that with the decreasing of perforated plate aperture、aperture ratio and weir height and increasing of bare tower velocity, the leakage is hardly to appear.

实验结果表明，多孔板的孔径、开孔率越小，堰高越低，空塔速度越大，越不易出现漏液。

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。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。