短語(yǔ)詞組短語(yǔ)block synchronizing signal 塊同步信號(hào)block k signal machine 閉塞信號(hào)機(jī)block received signal 數(shù)據(jù)塊收到信號(hào);碼組收到信號(hào)BSS Block Synchronizing Signal 塊同步信號(hào)Block Acknowledge signal 閉塞證實(shí)信號(hào)block control signal 塊控制信號(hào)block for signal flag 旗索滑車BRS Block Received Signal 數(shù)據(jù)塊收到信號(hào)block bell signal 閉塞鈴信號(hào) 返回 block signal