本工作对离心法分离钨的同位素进行了研究。
The separation of tungsten isotopes by gas centrifuge is studied.
这一系列研究工作对实现维生素e的清洁生产具有重要的现实意义。
All these researches are of great practical significance for the clean production of Vitamin e.
方法选择硝酸甘油针剂作对照，观察其对心绞痛发作频率、心电图、一氧化氮(NO)及内皮素(et)的影响。
Methods: the effect of gi on frequency of angina attacks, ECG, nitric oxide (NO) and endothelin (et) were observed and contrasted with that of nitroglycerin.
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