The article explains the applications of no-negative water supply technique, based on the actuality of engineering.
文章结合工程实例，阐述无负压供水技术的应用。
Based on the actuality of worm gear lubricant, some research topics that are worth thinking are also brought forward.
并在蜗轮蜗杆油现状的基础上提出了值得思索的几个问题。
Therefor, this paper presents a voltage type general inverter, based on the actuality of the ac electric drive systems in the domestic.
本文正是基于目前我国交流电气传动系统的现状，设计了一台电压源型通用变频器。
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