首次确定了接地电极转动对介质阻挡放电的影响。
The effect of the rotating grounding electrode on dielectric barrier discharge is determined.
通过比较，吉尔博士首次确定了细菌利用酶反应帮助人类消化植物中糖化合物的大致过程。
This comparison helped Dr Gill identify for the first time the probable enzymatic processes by which bacteria help humans to digest the complex carbohydrates in plants.
首次确定了国产抽油机的可靠性指标，并为提高抽油机的可靠性提出了改进意见。
The reliability index for home-made pumping units is determined for the first time and Suggestions for improving the reliability of pumping units are presented.
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