煤气管

• Connect the gas stove with the gas pipe
  将煤气炉和煤气管接连。
• Please don t lay down gas pipes and water pipes under the floor
  请不要在地板下铺设煤气管水管。
• Half the road surface is being taken up to lay new gas pipes
  人们挖开半个路面以铺设新的煤气管道。
• Separable unthreaded pipe connections for metal gas pipes
  第1部分:金属煤气管道用可拆卸的无螺纹管连接件
• Asbestos - cement pressure pipe for gas
  石棉水泥输煤气管
• As soon as the quake is over , check the gas pipe in the building
  地震一旦停止，立刻检查建筑物内的煤气管。
• Pliers : lineman ' s , iron worker ' s , gas , glass , fence , and battery
  线路工钢铁工煤气管玻璃篱笆和蓄电池用钳
• Tube connections for metallic tubes having flanged ends for gas pipes
  煤气管道用带法兰接头的金属管道管连接件
• They could not use the gas stove because it had not been hooked up
  他们不能用那煤气炉，因为煤气管道尚未接上。
• As the high building rise , in order to increase erosion resistance , the steel pipe for water conveying
  管道煤气管道等都因采用钢塑管而使管路使用寿命增加5