常見(jiàn)例句This paper compares the cost of ISLN with that of ISDN and the design of ISLN is introduced in detail. 文中比較了ISDN相對(duì)于ISDN的費(fèi)用，并詳細(xì)討論了ISLN的具體設(shè)計(jì)。 返回 ISLN