At the larger mass flow, the relative velocity at the middle channel was higher than that both of suction side and pressure side of the impeller at the inlet section.是什么意思_At the larger mass flow, the relative velocity at the middle channel was higher than that both of suction side and pressure side of the impeller at the inlet section.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句