laser altimeterlaser terrain-clearance indcatorlaser terrain-clearance indicatorlaserterrain-clearanceindcatoroptical maser altimeter激光: laser测高计: holometer; height finder; he ...激光测高仪: laser altimeter; laseraltimeter; optical maser altimeter登月用光测高计: lunar optical altimeter激光测高精度: laser height accuracy下载手机词典可随时随地查词查翻译