n.配電盤；電話總機(jī)
We should make all cable terminations on switchboard and consumer side. 我們應(yīng)使所有的電纜終端連接在配電板和用電設(shè)備上。
The switchboard is manned twenty-four hours a day. 電話總機(jī)是一天24小時(shí)由人操縱的。
開關(guān)鍵盤
