Most suitable for large currents at medium and high voltage .
最适合用于中高压、大电流的回路中。
The three modes updating the statistical data are low, medium and high.
有三种模式可用于更新统计数据:low、medium 和 high。
For MEDIUM and HIGH mode, query column constr_time in sysdistrib and sysfragdist catalogs.
对于MEDIUM和HIGH模式,查询sysdistrib和sysfragdist目录中的constr _ time列。
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