This article introduces all kind of control method of pulse melting pole in gas protection welding, and divided them into two kind: parameter control and melt dripping transition accurate control.
全面系统地介绍了脉冲熔化极气体保护焊的各种控制方式，并明确地把它们分为两类：参数控制和熔滴过渡精确控制。
The author through the years in the field of gas station testing experience, made analysis of the basic method of gas, gas station lightning protection, for reference.
笔者通过几年来在加油站的现场检测经验，对加油、加气站防雷的基本方法做出了分析，供同行参考。
Our country environmental protection bureau promulgates "Air And Waste gas monitor analysis method", has established many organic pollutant monitor analysis methods.
而我国国家环保局颁布的《空气和废气监测分析方法》中，确立了许多有机污染物的监测分析方法。
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