Another technique is dropping, in which partial bands are directly dropped from the line-frequency band, and where replenishment is also often possible.

另一种技术是分路连接，部分通路从线路频带上直接分出来，而补满也往往是可能的。

youdao

Another technique is dropping, in which partial bands are directly dropped from the line-frequency band, and where replenishment is also often possible.

另一种技术是分路连接，部分通路从线路频带上直接分出来，而补满也往往是可能的。

youdao