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 ...
持续暴露在强度高于80分贝的噪声中可能有害。Continuous exposure to sound above 80 decibels could be harmful.典型的割草机发出的声响约为90分贝.The typical lawn mower makes about 90 decibels of noise.普通的谈话即可达55分贝.A normal conversation reaches 55 decibels....
O'Keeffe was influenced by various painters and photographers, but she was never a member of any school.欧姬芙受多位画家和摄影家的影响，但她从未加入过任何学派。I shall be calling for you at seven o'clock.7点钟我来接你。...as the Guildhall clock ...
Salzburg is an outstandingly beautiful place to visit.萨尔茨堡是个风景非常秀丽的游览之地。The name of Mozart is coupled with the city of Salzburg.莫扎特的名字是与萨尔茨堡城联系在一起的.Salzburg zieht mIt'seinen weltber ü hmten Konzerten Tausende von Mu...