煮饭炒菜烧水离不开燃料。 50年代前,不少人家烧的是木柴,60年代改为煤炉;70年代后又普遍使用液化气;进入90年代,管道煤气已风靡杭城,如今,杭州市管道煤气安装已达5万余户。 每当用户点燃煤气灶,用作贸易结算的计量仪表——煤气表就开始转动,家家用户都关注着它的转速。有些用户说:“家里的煤气表好象走得特别快。” Cooking rice with boiling water is inseparable from fuel. Before the 1950s, many people burned firewood. In the 1960s, they changed to coal stoves. After the 1970s, they used liquefied gas. In the 1990s, the pipeline gas had already swept into Hangzhou. Today, the pipeline gas installation in Hangzhou has reached 50,000. Residents. Whenever a user ignites a gas stove, a meter used as a trade settlement—the gas meter starts to turn, and every household user pays attention to its rotation speed. Some users said: “The gas meter at home seems to go very fast.”