capacity of telephone exchange

基本解釋

By the end of 1998, the home-made exchanges had constituted 98% of all the newly added telephone exchange capacity.
到1998年底，通信網(wǎng)新增電話交換機中，國內(nèi)生產(chǎn)設(shè)備的比重已達到98%。
http://dj.iciba.com
Program-controlled telephone exchange capacity of the city accounts for 49.4 million lines, built a broadband residential and boutique information technology district 72.
全市程控電話交換機容量達49.4萬門，建成了寬帶小區(qū)和精品信息化小區(qū)72個。