单词	piston boss
释义	piston boss [机] 活塞销毂
随便看	backward pawns backward phase component backward photodiode backward pig backward pivot backward pointer backward polyphase sort backward position backward power backward prediction backward pressure backward probability backward process backward processing backward production system backward production system for robot problem solving backward progression backward progression lap winding backward progression winding backward propagation ionospheric scatter backward pruning procedure backward pull backward radiation backward ray cone backward reachability 325135252 3251354 32515112 325151134 325151152 325151214 325151252 325151252 325151344 325151454 衆評衆論衆議衆議院衆道衆院行行行行