基于C - W方程，推导了用直角坐标和轨道根数描述的远程导引段多冲量变轨段策略的方程，同时给出了求解方程组的迭代算法。
Based on the C-W equation, equations with both rectangular coordinates and orbital elements for the impulse maneuvers in long-distance guidance are derived.
桥式起重机在使用一段时间后，会出现不同程度的大车行走啃轨现象，尤其是使用多年的陈旧桥式起重机。
Bridge crane in use after period of time, can appear different degree of cart walk chew rail phenomena, especially used for many years of old bridge crane.
推力有限时，地球同步轨道卫星在远地点变轨的弧段很长，会导致较多的燃料消耗。
In the case of finite thrust apogee maneuver for the geostationary satellite, the fuel consumption increases due to the long burn arc.
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