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.
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)。
Both the plasma density and the electron temperature increase as the coil current increases.
当线圈电流增大时，等离子体密度和电子温度都随着增大。
The feedback control system of HL-2A device is designed to control the current, displacement, configuration and density of plasma on real-time, so some plasma parameters can be achieved as expected.
HL 2A装置反馈控制系统的主要任务是逐步实现对等离子体电流、位移、形状和密度的实时反馈控制，从而能够按照实验目的对托卡马克等离子体进行各种试验。
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