基本解釋[機械工程]絕對閉塞制絕對分段制詞組短語短語absolute permissive block system 絕對容許閉鎖系統(tǒng);繙譯block system absolute 絕對閉塞制block system absolute permissive 權(quán)宜絕對閉塞制absolute block system更多詞組專業(yè)釋義機械工程絕對閉塞制絕對分段制