单词	simple perforation
释义	simple perforation 单穿孔
随便看	springreturn spring return spring-return spring-return button spring return button spring-return directional valve spring return directional valve spring return limit switch spring-return piston spring return piston spring-return switch spring return switch spring return valve spring reverse motion spring ride model spring rider spring riders springrigging spring rigging spring rigging fulcrum spring rigidity spring ring spring ring coupling spring-ring dowel spring ring joint 颓垣废井颓垣废址颓垣断堑颓垣败井颓垣败壁颔颔2 颔4 颕颖カンドウミャクカンドコロカンナカンナカンナイカンナガラカンナヅキカンナベカンナメサイカンナン