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单词
Lunar Laser Ranging
释义
Lunar Laser Ranging
Encyclopedia
理学
激光测卫
释
Lunar Laser Ranging
月球激光测距
地面测站上的发射望远镜向月球发射脉冲激光,经过月球表面上的光学四面体棱镜即后向反射器的反射,激光回波沿原路径返回到达地面上的接收望远镜,通过测定激光往返所需的时间,乘以光速便得到地月之间的距离的技术。简称LLR。
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circulation modernization of agricultural products
Circulation of agricultural products
circulation of capital
circulation of forest property
circulation of materials in artificial reefs area
circulation of rural land contracted management rights
circulation-preserving flow
circulation production price index
circulation rate
circulation ratio of forced circulation
circulation service
circulation storehouses
circulation system of agricultural products
circulation theorem
circulation theorem of electrostatic field
circulation theory of history
circulator
circulators
circulatory integral
circulatory motion
circulatory system
circules
circulizer
circum-angle
circumanticevian triangle
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