对电气回路中因谐波造成的电力线路中性线过载和测量仪表出现较大误差的原因进行了分析，探讨了抑制谐波的措施。
The paper analyses the causes of overload of neutral line and great errors of measuring instrument by harmonics electrical line.
流量是炼化工艺过程中最重要的测量控制热工参量。本文介绍和分析了流量测量仪表的分类、应用现状和发展趋势，供炼化工厂流量仪表的选用参考。
This article introduces and analyzes the sorts, applying actuality and developing tendency of flux measure instrument, for reference of flux instrument's selection in refinery and chemical plant.
流量是炼化工艺过程中最重要的测量控制热工参量。本文介绍和分析了流量测量仪表的分类、应用现状和发展趋势，供炼化工厂流量仪表的选用参考。
This article introduces and analyzes the sorts, applying actuality and developing tendency of flux measure instrument, for reference of flux instrument's selection in refinery and chemical plant.
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