用紫外線燈勘探熒光礦物
A miner's lamp is fixed onto his helmet. 礦燈固定在礦工的頭盔上。
A collector of antique cars asked Frank to look out for a 1906 gas head lamp. 一位老式汽車收藏家要弗蘭克留神1906年產(chǎn)的煤氣前燈。
箝位
