结果表明，存在着驱动电流的密度窗口，即仅在一定的等离子体密度范围内才能驱动电流(通常在理论和实验上仅注意到驱动电流的密度上限)。
The results show that there exists a density window for lower hybrid wave current drive (LHCD), i. e, LHCD would be achieved only within a certain range of plasma density.
最后在系统实验基础上，给出了PWM波形、驱动波形、在一定转速下的相绕组电流波形以及系统的动态特性，步卜作一了分析。
PWM waves of DSP , drive waves , the current waves of each phase in a speed and curve of speed trait are given and analyzed at the end of article.
实际中广泛使用的电动式扬声器具有一定的电感，且为电流驱动器件，其输出声压与电流成正比。
But electrodynamic loudspeaker used extensively takes on inductance, and it is a device driven by current, its output sound pressure is proportional to current.
在一定条件下低混杂波电流驱动可以改善等离子体粒子约束。
The impurity transport is anomalous. the particle confinement could be improved in a certain condition during the low hybrid current drive.
在一定条件下低混杂波电流驱动可以改善等离子体粒子约束。
The impurity transport is anomalous. the particle confinement could be improved in a certain condition during the low hybrid current drive.
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