radius[?reidj?s]
n.半徑，有效航程，范圍，界限
‖ radius drill定距射門練習(xí)
radius of action滑降彎轉(zhuǎn)半徑
radius of burst爆炸半徑
radius of damage破壞半徑
radius of flight飛行半徑
radius of gyration回轉(zhuǎn)半徑
radius of influence影響半徑
radius of operation活動半徑
radius of rotation轉(zhuǎn)動半徑
radius of safety安全半徑
radius of visibility能見半徑