If Brazier effect occurs on a stalk, it will bend after 25 % to 30 % of flexion.发生Brazier屈曲的茎在危险截面的屈曲程度为25%~30%时达到临界弯距,此后进入屈曲.There is a particular urgency in this case, and it would help if you could bend the rules.这次碰巧...
给出了一种新型的 单相 航空静止变流器,分析了其工作原理和特性.A novel two - stage structure of single - phase aeronautical static inverter ( ASI ) is present.摘要介绍了单相电压型三电平四象限变流器工作原理.The working principle of the single - phase voltage - source 4 - qua...