switching office中文什么意思

交换局

中继局

• switch:    n. 1.(树上折下的)细树枝；软鞭 ...
• office:    n. 1.职务，任务。 2.公职，官 ...
• central office switching system:    中心局交换系统

例句与用法

1. A digital central office switching system made by lucent . it is typically used as an " tandem switching office , switching long distance phone calls . see 5ess
   朗讯公司生产的一种数字市话局交换系统。通常作为一种汇接交换局，转接长途电话。参见5ess 。
2. However , the corporation was no longer what it was in 1990 when the asian games was held in that it had greatly expanded and improved its infrastructure , boasting of over 2000 switch offices , 10 , 000 core km of fiber optic and numerous access points across the city
   与1990年亚运会相比，当时的北京市通信公司早已今非昔比，鸟枪换炮了。局所已达2000余处，光缆总长度超过数10万芯公里，接入点遍布全市各地。