However , the noise spectrum of the ash exhauster always centers at low frequency range.排粉机噪声呈明显的低频特性.The utility model relates a linkage device of a cooking fume exhauster and a gas stove.一种燃气炉与抽油烟机的联动装置....
about的近义词/同义词有：concerning, upon, virtually, approximately, nearly, practically, almost, around, of, to, the, on, point, ready, on, over, approximately, concerning, of, the, point, nearly, almost, upon, around。prep.about的...
The process of chlorine leaching - purification - electrowinning for nickel extractioncopper residue is investigated.研究通过氯气浸出 - 净化 - 不溶阳极电积法生产电镍的工艺过程.The research results of recovering copper by electrowinning from conce...
His memory suffered irremediable damage.他的记忆力遭受了永久性的损伤。Is our defeat final and irremediable?我们是不是已经一败涂地、无可挽回了?The evil is now irremediable.这种不幸现在是无法补救了....