The working principle, principalblock diagram, and the detecting records of the three-phase power converter are also analysed in this article.
本文还对三相功率变换器的工作原理、原理框图以及检测数据进行了分析。
2
Calculation methods to determine the mass of polygonal and non-regular form steel plate are introduced and a principalblock diagram for oil tank bottom plate mass calculation is listed in this paper.
介绍了多边形钢板与不规则多边形钢板质量的计算方法，列出了用计算机计算油罐底板质量的原理框图。
3
Thus the research on stress trait, design calculation theory and construction principal point of block retaining structure has certain significance in theory and practical engineering.