走廊里的煤气灯应该是开着的，调得比较暗。The gaslights in the passage would be on, turned low.煤气灯逐渐为电灯所代替.The gas lamp gradually lost ground to electric lighting.相反, 他划了根火柴,点亮了煤气灯.Instead, he struck a match and lighted the gas....

“煤气灯”的英语可以翻译为：gas light，[化] gas lamp，[医] gas burner，gaslight ...