1 . Extractive matter. Alcohol soluble, other solvents, nonvolatile ether extractive .

萃取物质, 溶于酒精, 其他溶解物, 不易挥发的乙醚.

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2 . METHODS: Its optimal extractive condition was found by right - cross test.

方法: 用正交试验法得到最佳提取条件.

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3 . Extractive distillation is an important separation process in chemical industry.

萃取精馏是化学工业中重要的分离方法之一.

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4 . Extractive industry, however, is not confined to the extraction of materials.

不过, 采掘业并不限于采掘原料.

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5 . Molecular design for extractive distillation could decrease experimental working.

萃取精馏的分子设计能够减少实验工作量.

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