说明： 电信术语,相信很多同行都有这样的困惑,术语太多,自己不太接触的记起来十分吃力.但这里记录了你所需要的,平时多看看. (telecommunications terms, I believe that many colleagues have such puzzles, and many terms, they can not contact the mind is extremely difficult. But here the record you need the peacetime see more.)
