西格弗里德畏缩了，退避到墙根。Siegfried cringed and shrank against the wall.斧头伐木不畏缩,尽管斧柄木头做.The axe go to the wood where it borrow its helve.他一回想起那番经历就畏缩起来.He winces at the memory of that experience....
This paper discusses waveform correction technique of the CVCF - SPWM inverter based on internal model control theory.本文的研究内容是基于内模控制理论的CVCF-SPWM 逆变器波形控制技术.In this paper a hybrid fuzzy - repetitive control scheme for 400 ...