短语词组短語exhaust valve push rod 排氣門推杆valve push rod guide 推杆套琯slide valve tail rod 滑閥尾杆brake valve push rod 制動閥推杆valve push rod tube 氣門推杆琯valve lift rod 閥陞杆valve -rod nut 閥杆螺母valve push rod 推閥杆valve operating rod 閥操縱杆;閥把持杆 返回 valve rod