对于后备保护装置防止高阻抗接地故障，将配置一只双极方向过电流继电器，同瞬时跳闸附件的时间成反比。
For backup protection against high resistive ground faults, there will be a dual polarized directional overcurrent relay, inverse time with instantaneous trip attachment.
框架设计成至少部分地包围在双极型电池组中安装的双片，并包含允许气体传输通过密封垫的装置。
The frame is designed to at least partially encompass a biplate when mounted in a bipolar battery, and include means to permit gas passage through the gasket.
实验装置原理图如摘要附图1所示，可以测量电子自旋的双极扩散常数；
The experiment device schematic diagram is shown in the drawing 1 of the abstract and can be used to measure the ambipolar diffusion constant of electron spin;
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