Single crystal of dihydrochloride was cultivated by natural cooling method according to its characteristic of solubility.
根据盐酸大观霉素的溶解度特性,采用自然冷却法培养出单晶.
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The prevention methods of heated turbidity included water cooling method, cooling method, and natural cooling method.
解决“热浑浊”的预防和控制方法有水冷法 、 风冷法和自然冷却法.
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