By virtue of an actual blower as example, following conclusions are obtained.Firstly amplitude of inflow flow pulsation of three leaves Roots blowers is less than that of two leaves Roots blowers.是什么意思_By virtue of an actual blower as example, following conclusions are obtained.Firstly amplitude of inflow flow pulsation of three leaves Roots blowers is less than that of two leaves Roots blowers.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句