天然气

• Codes of well information for oil and gas exploration
  石油及天然气探井信息代码
• Studying method of diffusion coefficient of natural gas
  天然气扩散系数的研究方法
• The eatimated methods of natural gas recoverable reserves
  天然气可采储量计算方法
• Crude oil and natural gas - calculation of reserves
  原油及天然气储量的计算方法
• . . . the same day unocal signed the pipeline deal
  . . .拿了发掘里海天然气的合同吗？
• China national oil and gas exploration development co
  中国石油天然气勘探开发公司
• Specification for excess flow valves for natural gas service
  天然气设备溢流阀规范
• Standard test methods for natural gas odor intensity
  天然气气味强度的标准试验方法
• Expert system of optimized operation for gas pipelines
  天然气管道优化运行专家系统
• Production , storage , and handling of liquefied natural gas
  液化天然气的生产和储运