abbr. （医学）长效可逆避孕（long-acting reversible contraception）；（天文学）月球暗面射电宇宙学阵列（Lunar Array for Radio Cosmology）；图书馆自动化研究通讯（Library Automatic Research Communications）；大型自动研究性计算机（Large Automatic Research Computer）；白细胞自动识别计算机（leukocyte automatic recognition computer）
The LunarArray for RadioCosmology (LARC) would involve hundreds ofsmallradiotelescopescoveringtwosquarekilometerson the side of the moon that never faces Earth.