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1·The geometry of the pipe shaped extraction electrode of the RF ion source may strongly affect the extracted ion beam.

高频离子源管道式引出电极的几何参数对束流引出具有重要影响。

2·Extracting ion by electric extraction ionic method is a dynamic process, the extraction volume relates not only with extraction time but also with location of indicate extraction electrode.

电提取离子法在提取离子时是一个动态过程，提取量不但与提取时间有关，而且与指示电极的位置有关。

3·Fluorine content of tea was studied by fluorine ion selectivity electrode and the relative factors which make influence to fluorine extraction were researched.

应用氟离子选择性电极法对茶叶中氟含量进行了测定。同时，对影响茶叶中氟浸出的相关因素作了初步探讨。

4·The results show that compared with parallel electrode method, RF resonance method has advantages such as shorter extraction time, lower collision loss and sputtering loss and higher collection ratio;

模拟结果表明，RF共振法与平行板静电场法相比，引出时间较短，碰撞损失和溅射损失较低，收集率较高；