数%的初始重量仍然作为一个白色残留物和被列为灰。
A few per cent of the initial weight remained as a white residue and was classified as ash.
如需要使用高于3%的浓度必须先进行实验验证，使用浓度高会导致在防水表面形成白色残留物。
If you need to use more than 3% of the concentration must be preceded by experimental verification, using high concentrations of lead in a waterproof white residue formed on the surface.
阐述了脱乙酰壳多糖使用于除臭剂配方中能提供良好的感觉和效果，不产生白色残留物和皮肤刺激性，且解释了其原因。
The author explains how chitosans can be used in deodorant formulations to offer good feel and efficacy without producing white residue or skin irritation.
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