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月球激光测距
释义
月球激光测距
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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Product/Market Evolution Portfolio Matrix
product matrix
product measurable set
product measurable space
product measure
product measure space
product metric
product metric space
product modeling
product modularization
product module
product moment
product-moment coefficient of correlation
product-moment correlation
product-moment correlation coefficient
product moment of area
product neighborhood
product noise standard
product notation
product object
product of a family of objects
product of algebras
product of cardinal numbers
product of categories
product of coal tar processing
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