horizontal-frequency divider,line(field)divider,line frequency divider是什么意思

用法例句

Design and running analysis of brewery wastewater treatment;

啤酒废水处理工程设计及运行分析(一)

A new type of advancement by full section descending slicing of doorhead is introduced.

在竖井掘进的同时，下行分层全断面掘进马头门，以桐坑三期副井为实例。