Molecular weight determinations on the purified material were conducted in benzene solutions by cryoscopic method.
点法，在苯溶液中对纯的物质进行了分子量测定。
点测定法的Molecular weight determinations on the purified material were conducted in benzene solutions by cryoscopic method.
点法，在苯溶液中对纯的物质进行了分子量测定。
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