海词手机词典

A capillary gas chromatographical method for analysing dichlorodiphenylsilan was deviced.Theadvantage of this method is rapid ahd accurate. The relative standard deviation of 4 measurements is0.45%.

播放读音 播放读音

以上内容独家创作,受著作权保护,侵权必究

海词词典,十七年品牌