Current must change working gap size can make the magnetic field strength and magnetic field gradient simultaneous changes.

电流一定时，改变工作间隙的大小可以使磁场强度和磁场梯度同时发生变化。

youdao

Cathode plasma moves ahead to the anode and changes diode effective gap. Plasma's expanding velocity is determined by electric field, density gradient and temperature gradient.

决定阴极等离子体膨胀速度的因素主要有二极管区的电场强度、等离子体的密度梯度和等离子体温度梯度等因素。

youdao

My proposal with this fellowship will use the novel method of applying an electric field gradient instead of chemical substitution to induce charge carriers in large gap insulators, and thereby create new superconductors.

UNESCO: 2013 UK and Ireland Fellows