The method is achieved by improving and synthesizing the neutral detergent method and the sulphuric acid hydrolysis method.
本法是将中性洗涤剂法与硫酸水解法加以改进、综合而成。
The method is achieved by improving and synthesizing the neutral detergent method and the sulphuric acid hydrolysis method.
本法是将中性洗涤剂法与硫酸水解法加以改进、综合而成。
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