供气

• Gas supply systems - compressor stations - functional requirements
  供气系统.压缩机泵站.功能要求
• If you don ' t pay your gas bill soon you may be cut off
  你若不立即付清煤气费,就要停止向你供气
• Gas supply systems - welding steel pipework - functional requirements
  供气系统.焊接钢管.功能要求
• Improvement of the compressed air - supply system in stomatological hospital
  医院口腔供气系统改造
• Design code for instrument air supply system
  仪表供气设计规定
• Regular maintenance of gas service risers
  定期检修大厦供气喉
• Remember to check the gas pipes of your building every 18 months
  记得每十八个月检查一次大厦供气喉！
• Code for the design of instrument air supply system for petrochemical industry
  石油化工仪表供气设计规范
• Specification for special requirements for valves used in gaseous oxygen service
  气态氧供气阀门特殊要求规范
• Gas supply : the gas west - east transfer project has been in operation
  供气： “西气东输”的天然气漯河已经开通。