单词	二面反射器
释义	二面反射器 dihedral reflector
随便看	collective occurrence collective offence collective offense collective of prisoners collective of probationers collective of student teachers collective open sales system collective operation collective opinion Collective opinions collective opposes collective opposition collective optics collective organization collective orientation Collective-orientation collective oscillation collective outburst collective output collective overpressure protection collective owned Collective-owned Collective-owned construction land collective-owned economy collective-owned enterprise income tax