gas arc lamp

• 煤

gas arc lamp的用法和样例：

例句

1. It's more economical to use gas than coal.
   烧煤气比烧煤上算。
2. Coal will be replaced by gas sooner or later.
   煤迟早将被煤气来代替。
3. The arc lamp is very useful in movie shooting, and screening.
   弧光灯在电影拍摄和放映的过程中有很大的用处。
4. He found Franklin, for instance, trimming arc lamps in an Ipswich factory for a few shilling a week.
   例如，他发现富兰克林在伊普斯威奇市的一家工厂里做装饰弧光灯的工作，一星期只赚几个先令。