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As an example, the multiple mirrors imaging system of KS-146 aero camera is introduced. Two kinds of method to estimate the image's rotating direction based on geometrical optics and vector are presented in detail.

本文以KS-146航空相机光学系统为例，介绍了对包括多反射镜成像系统扫描像旋转方向进行判别的两种方法－几何光学法和矢量法，分析证明两种方法的判别结果是一致的。

China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China

中国地质大学地球物理与信息技术学院，北京 100083

In this paper, the principle of the accelerometer-based gravity gradiometer is presented and its measurements formulas are derived using the basic equation of acceleration in a rotating body.

然后以美国Bell/Aero公司生产的重力梯度仪为例，导出旋转加速度计式重力梯度仪测量结果。

The main structure of airplane tire is divided in to have no inner tire tire and has an inner tire tire, they become the help buffer airplane of an air mat layer lands process in of vibrate and runway of rough gravamen;On the ground, when they prop up aero weight, and land, they provide an essential brake to combine dint for making to move and making the airplane come to a stop.

一些关于飞机的中文翻译成英文，请求帮助飞机轮胎的主要构造分为无内胎轮胎和有内胎轮胎，它们形成一个空气垫层帮助缓冲飞机着陆过程中的震动和跑道的粗糙不平；在地面上，它们支撑着飞机的重量，并且着陆时，它们为制动和使飞机停下来而提供必需的刹车结合力。

Ground speed decides how long an aero plane will take to fly from one place to another.

地速度决定多久航空飞机将飞往从一个地方到另一个地方。

The improvement of fire control system is an important method to heighten the efficiency of aero-weapons system.

航空火力控制系统的改进是提升飞机武器系统作战效能的一个重要手段。

In the full-scale aero-elastic model test, it is observed that there exist more than one interval of poor aerodynamic performance, and the non-symmetric erection sequence, while increasing the aerodynamic stability at the very places where aerodynamic performance of symmetric erection sequence is poor, performs worse in some other intervals with a vertical flutter phenomenon.

在全桥气弹模型的风洞试验中发现，采用对称架梁施工方法，在施工过程中会存在颤振稳定性最差的区间，并且这样的区间可能不止一个，而采用非对称架梁施工方法，固然在那些采用对称架梁施工时颤振稳定性较差的区间处提高了颤振稳定性能，但却在另一些施工区间中表现出比对称架梁施工更差的颤振稳定性能。

However, the Lateral Shear Interferometer can realize the two kinds of measurement, and it is the better tool for aero-optical test. For ordered aberration, it is deduced and simulated that the ability of wavefront reconstruction of LSI is better than Hartmann Wavefront Sensor , for the indirect sampling information of wavefront with LSI is more than HWS.

进一步分析了随机扰动和有序扰动的测量方法，指出在两种扰动同时存在的条件下，横向剪切干涉仪可以同时对两种扰动进行测量，因而是近场测量气动非均匀介质对光束质量影响的较好的研究方法。

Arming at some kind of aero-engine blade, three kinds of workpieces such as plane, slant and blade profile were regarded as research objects. Fused equation was used to monitor interelectrode gap.

以某型航空发动机叶片为对象，对平面、斜面、叶片型面3种加工阴极进行试验，利用融合方程式在线检测加工间隙。

The 3-dimension solid model of the 8th turbine rotor blade of some type aero engine is constructed in software UG, and the numerical calculation region of stream field in ECM is set up in special flow field calculation software FLUENT based on the principle of hydrodynamics. The distribution of 6-dimension forces is got after numerical calculation, and the equation between 6-dimision forces and interelectrode gap is set up.

基于流体力学原理，用UG造型出某型航空发动机8级涡轮转子叶片，用流场计算软件FLUENT构造电解加工中叶片的流场计算区域，经数值计算得到六维力的分布，并从理论上建立六维力与间隙之间的关系方程式，为后续试验研究提供了参考依据。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。