The antenna employs a dual gimbal mechanism to track the earth station when the spacecraft is in lunar orbit.
该天线采用了双万向接头结构,以便航太器在月球轨道跟踪地球站基站。
Research methods: By studying documentation and taking Datong-Qinhuangdao Heavy-haul railway for example, this paper determines the working scope and rational effective length of the receiving-departure track for heavy load train in technical station.
研究方法:通过文献研究并以大秦线为例,确定重载铁路技术站到发线作业内容及合理的到发线有效长度;
That station has 16 trident mouth, need artificial lay track.
那曲车站有16个三叉口, 需要人工铺轨.
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