Expansion joints of various kinds are fitted on gasmains.
各种各样的伸缩接头被安装在煤气的总管道上了。
2
Fanned by high winds, fires from overturned cookstoves and ruptured gasmains spread.
大风吹过,火从翻倒的炉子和煤气管道中蔓延开来。
3
Roads, railways, water and gasmains, sewage pipes and electricity cables all move things around. So do the blood vessels of animals and the sap-carrying xylem and phloem of plants.