Comparing with the conventional medicament such as alcohols, aldehydes, the advantage of this depressant is that its dosage is small, its water-solubility is nice and the depressant rate is high.

这种缓蚀剂与常规药剂如炔醇类、醛类、及烷苯吡碇类等缓蚀剂相比具有用量少、水溶性好、缓蚀率高等优点。

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Because of variable void filter material, the system has the advantage of saving chemicals dosage.

由于采用变孔隙滤料，该系统具有用药量省的优点。

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It has the advantage of being a once-a-day pill, while other similar drugs in development require dosage three times a day, McDonald says.

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