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。
Combined with the environment protection requirement of constructing plant in Sichuan gas fields, the use value of MCRC method and its significance are evaluated also.
文中还结合四川气田建厂的环保要求，评价了MCRC方法的使用价值及意义。
Temporary shielding protection reservoirs method can reduce the stress sensitivity damage of tight sandstone gas reservoirs.
采用屏蔽暂堵储层保护工作液技术能够减轻致密砂岩气层的应力敏感性损害。
The invention discloses a method for extracting multilayer charcoal gas with efficiency, environment-protection and an extracting furnace used thereof.
本发明公开了一种高效环保多层炭气提取方法及所用的提取炉。
The risk assessment model for cathodic protection of buried gas pipeline is constructed with the modified fault tree method.
结合某市工程实例，探讨了地理信息系统在埋地燃气管道风险分析中的应用。
The risk assessment model for cathodic protection of buried gas pipeline is constructed with the modified fault tree method.
结合某市工程实例，探讨了地理信息系统在埋地燃气管道风险分析中的应用。
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