n-heptane extractives at refluxing temperature
...nol extractives at refluxing temperature 50％酒精回流萃取 n-heptane extractives at refluxing temperature 正庚烷回流萃取 Net chloroform soluble fraction of distilled water 氯仿可溶萃取物（去离子水浸取法） ..
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n-heptane extractives at refluxing temperature
回流温度下的正庚烷萃取物
以上为机器翻译结果，长、整句建议使用 人工翻译 。