pfw的翻译

PFW was added based on PWM, and switching circuit between PWM, PFW and control circuit of external characteristic were designed, the control system fulfilled the higher request, and have double excellence of PWM and PFM.

在PWM控制的基础上引入PFM控制，并设计出PFM与PWM的切换电路及外特性控制电路，实现了设计的控制要求，使整个控制系统具有PWM和PFM的双重优点。

Through an analysis of crystal chemistry and sintered mechanism for PFW. it has been shown that addition of PFW to PZN can decreases or suppresses the formation of pyrochlore phase.

通过对PFW结晶化学和烧结机理的分析，证明在PZN中添加PFW能减少或抑制焦录石的形成。

When the content of PFW in Kevlar fabric composite is 20%, the Kevlar fabric composites can obtain the best friction-reducing and anti-wear properties.

当PFW质量分数为20%时，Kevlar纤维织物复合材料的摩擦系数减小75%、磨损率降低82%，Kevlar纤维织物复合材料的减摩抗磨性能最佳。