But the ion extraction time does not always decrease with the applied voltage.
但是，离子引出时间并非一直随电压的增加线性减小。
Experimental study of the influence of plasma shielding on ion extraction time.
等离子体屏蔽效应对离子取出时间影响的实验研究。
The RF method shortens the ion extraction time, and increases the ion extraction efficiency. It can also control the plasma density by changing the magnetic field.
共振法缩短了离子引出时间，提高了离子引出效率，并且可以通过对外加磁场的调节来控制等离子体密度。
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。
Ion extraction and collecting character under different voltage, the relation of collecting time with shield stripping, and collision and sputtering effect were simulated.
模拟了不同外加电压下几种静电场收集模型的离子引出收集特性、引出时间与屏蔽剥离的关系，以及碰撞和溅射效应。
Ion extraction and collecting character under different voltage, the relation of collecting time with shield stripping, and collision and sputtering effect were simulated.
模拟了不同外加电压下几种静电场收集模型的离子引出收集特性、引出时间与屏蔽剥离的关系，以及碰撞和溅射效应。
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