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(jī)中，國內(nèi)生產(chǎn)設(shè)備的比重已達(dá)到98%。
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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(jī)容量達(dá)49.4萬門，建成了寬帶小區(qū)和精品信息化小區(qū)72個(gè)。