They had to change the date fixed to Feb. 28 th.他们只得把约期改到2月28日.We'll change the date to Feb.28 th.我们将把日期改到2月28日.Feb import dual - use monitoring system is linear and IC packaging.电测系统选用进口双列封装的线性和集成电路....
It is supposed to be washed down the gutter and into the city's vast sewerage system.它应该是被沿排水沟冲入城市庞大的排水系统。Sewerage systems are either'separate'or'combined '.排水系统有 “ 分流制 ” 和 “ 合流制”.The acid waste ...