用紫外线灯勘探荧光矿物
A miner's lamp is fixed onto his helmet. 矿灯固定在矿工的头盔上。
A collector of antique cars asked Frank to look out for a 1906 gas head lamp. 一位老式汽车收藏家要弗兰克留神1906年产的煤气前灯。
箝位
