倒车轮机 astern turbine

倒车涡轮 back turbine ; [动力] backing turbine

倒车汽轮机 astern turbine

倒车齿轮箱 reversing gear box

倒车涡轮壳体 astern cylinder

倒车齿轮 reversing gear

倒车齿轮组 reverse gear block

倒车发火凸轮 astern ignition cam

倒车排气凸轮 astern exhaust cam

倒轮式刹车 coaster brake