在干燥轨面状态下，选取常用粘着系数以不大于0.27为宜。
An adhesion coefficient of less than 0.27 would be appropriate under dry rail surface condition.
城市轨道交通系统的钢轨波浪磨耗是由于车轮长期在轨面沿纵向、横向或蛇行蠕滑造成的。
On transit systems, rail corrugation is generally a result of periodic wear from longitudinal, lateral or spin-type creepage.
大型空间网状天线反射面精度控制的目的是保证天线在轨工作时的反射性能。
The technology of Large Space Mesh Antenna Reflector Precision Control intends to ensure the performance of antenna at orbit.
另一方面，随着卫星遥感器在轨运行时间的增长，其性能会逐渐退化，MTF也会逐渐下降。
On the other hand, when the remote sensor runs on orbit, its performance will gradually degenerate and MTF will gradually descend too.
分别利用了共轭函数法与直接配置和非线性规划方法对异面最优变轨问题进行了求解。
Adjoint function algorithms and direct collocation and nonlinear programming methods are applied to resolve the non-coplanar optimal orbit transfers problem.
采用数值仿真方法研究了不同车轮踏面外形、轮对内侧距、轨底坡和车速对踏面磨耗深度和磨耗分布的影响。
Numerical simulation was used to study the influence of profile shape, vehicle speed, wheel back distance and rail cant on the wear depth and wear distribution of wheel profile.
利用该发射率光谱测量结果，可以在敦煌戈壁——中国遥感卫星辐射校正陆面场， 对目前国内外主流的遥感卫星热红外通道进行在轨场地绝对辐射定标。
With these measured emissivity spectra, all of the mainstream thermal infrared remote sensors can be calibrated using Dunhuang Gobi surface at radiometric calibration site of China.
针对极轨气象卫星N O A A A V H R R数据的高精度定位，提出了一种从直接定位、导航定位、几何精校正三方面综合考虑的方案。
This paper presented a new scheme of high precision location for NOAA AVHRR data, which comprehensively considering the direct location, navigation and geometric correction.
针对极轨气象卫星N O A A A V H R R数据的高精度定位，提出了一种从直接定位、导航定位、几何精校正三方面综合考虑的方案。
This paper presented a new scheme of high precision location for NOAA AVHRR data, which comprehensively considering the direct location, navigation and geometric correction.
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