合成了一系列高纯度的表面活性剂。
亚沸设备，用于提取高纯度的酸和水。
Complete subboiling system for production of high purity acids and water;
本发明具有简便易行，高收率，高纯度的优点。
The invention is simple and easy to operate, high-yield and high-purity.
制得低损耗、高纯度的塑料光纤是目前国内外共同的目标。
To produce highly pure POF with low losses is an international issue.
这是高纯度及稳定的组合。
前言： 目的：建立高纯度丹酚酸B的最佳制备工艺流程。
Objective:The best technology of the preparation of salvianolic acid B was established.
前言： 目的：建立高纯度丹酚酸B的最佳制备工艺流程。
Objective:The best technology of the preparation of salvianolic acid B was established.
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