blocking lever

进出口行业词汇英语翻译(B) ... blocking layer cell 阻挡层电池 blocking lever 闭塞杆 blocking machine 抛光机 ...

http://www.ptsgi.c... ... "闭塞装置,闸柄闩"," Blocking-device" "闭塞闸柄"," Blocking lever" "闭塞器电路"," Block circuit" ...