1·Coal gas rivaled smoky oil lamps and flickering candles, and early in the new century, well-to-do Londoners grew accustomed to gaslit houses and even streets.
煤气可与烟雾缭绕的油灯和摇曳不定的蜡烛相媲美，在新世纪之初，富裕的伦敦人逐渐习惯了有煤气照明的房子，甚至街道。
2·How much coal gas can this gas tank contain?
这个煤气包能储存多少煤气？
3·It might be necessary to convert the whole country back to coal gas.
可能有必要使全国都重新改为使用煤气。
4·At that time, the coal gas of my home had changed to pipe and the former gas pot was useless.
那时，我家煤气改管道，原来的罐子没用了。
5·In addition, sometimes people forget to turn off the coal gas when they leave their house.
此外，有时人们在出门前忘记关煤气。
6·Impurities gathered in the duct wall affected the cooling effect of coal gas primary cooler.
我厂的煤气初冷器因管壁上结积杂质而影响其冷却作用。
7·Coal gas, water gas, producer gas and similar gases, other than petroleum gases and other gaseous hydrocarbons.
煤气、水煤气、炉煤气及类似气体，但石油气及其他烃类气除外。
8·This text studies how to let out and control the coal gas of a district, and has designed a coal gas warning system of controlling.
本文就是学习如何对一个小区的煤气泄漏进行监控，并设计了一个监控四个单元的煤气报警系统。
9·You may entrust us as an agent to pay the charges of your water, power, coal gas, telephone, etc. Then you will have nothing to worry about.
您可以委托我行为您代交水、电、煤气、电话等费用，您就不用为此烦恼了。
10·ii. Tap water, heating, air conditioning, hot water, coal gas, lipuefied petroleum gas, naturalgas, methane gas, coal/charcoal products for household use;
自来水、暖气、冷气、热水、煤气、石油液化气、天然气、沼气、居民用煤炭制品；