油和气 meaning in Chinese

cil and gas

Pahs are a group of chemicals that are formed the incomplete burning of coal , oil and gas , garbage , or other organic substances
多环芳烃是一组化学物质，他们是由未经完全燃烧的煤.油和气. * * .或是其他有机物质形成的。
Pahs are a group of chemicals that are formed the incomplete burning of coal , oil and gas , garbage , or other organic substances
多环芳烃是一组化学物质，他们是由未经完全燃烧的煤.油和气.垃圾.或是其他有机物质形成的。
Corrosion protection . carbon and low alloy steels for use in hydrogen sulfide containing environments in oil and gas production . materials and test methods . guidelines
腐蚀防护.油和气生产中含硫化氢的环境中使用的碳钢和低合金钢.材料和试验方法.指南