常見例句用作名詞 (n.)This facility is important in some PBX systems which use nonstandard lines that certain modems will interpret as a dead line.這種設(shè)備在某些專用小交換機(jī)系統(tǒng)中非常重要,這些系統(tǒng)用的是非標(biāo)準(zhǔn)線路,某些調(diào)制解調(diào)器會(huì)把它們儅作死線路。 返回 PBX