The ratio of pump pressure and admixture is studied.The cause of pump pressure is analyzed,the correlation of the pump pressure and admixing ratio is derived.是什么意思_The ratio of pump pressure and admixture is studied.The cause of pump pressure is analyzed,the correlation of the pump pressure and admixing ratio is derived.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句