1. optical libration of the Moon 
   月球光学天平动
2. physical libration of the Moon 
   月球物理天平动
3. The difference in longitude between two positions as a result of movement to the east. 
   东距两地间经度差，指向东移动的距离
4. determination of astronomic longitude 
   天文经度测定
5. The difference in longitude between two positions as a result of a movement to the west. 
   经度差因为向西的运动而产生的两个位置之间的经度上的差别

查看更多例句 相关情景会话

• 1. 经天平动
  libration in longitude经天平动
  tool.dlcom.org - 相关搜索