基本解释自動閉塞信號機英汉例句雙語例句Railway automatic blocking and continuous transmission lines (RABCL) supply power for the railway automatic blocking signal and the loads along the lines, etc.自動閉塞和電力貫通線路爲鉄路沿線自動閉塞信號及車站負荷等提供電源。automatic block signal更多例句词组短语短語signal automatic blocking 信號自動閉塞automatic block signal更多词组