variable power system造句

例句与造句

1. This dissertation presents the structure , the principle and the design of frequency - variable power system with the application of dsp ( digital signal processor ) and ipm ( intelligent power module )
   变频技术是电力电子技术的主要组成部分，应用十分广泛，它主要应用在交流电机的调速和供电电源两个领域。
2. It's difficult to find variable power system in a sentence. 用variable power system造句挺难的