sleeper effect
【建筑】枕木钻孔机（螺旋钻）
sleeper drill (auger)
暂无补充释义。
相关词条
sleeper rebuilding device (sleeper replacing device)
sleeper
sleeper
dark sleeper
sleeper grip (sleeper clamp)
cotton flannelette self-help belt sleeper
prestressed concrete sleeper
sleeper drill (auger)
暂无补充释义。
sleeper effect
sleeper rebuilding device (sleeper replacing device)
sleeper
sleeper
dark sleeper
sleeper grip (sleeper clamp)
cotton flannelette self-help belt sleeper
prestressed concrete sleeper