laser

L 開頭單詞四級詞匯考研詞匯專八核心詞托福詞匯 SAT詞匯高考詞匯

柯林斯詞典

laser /?le?z?/ (lasers)

1. N-COUNT A laser is a narrow beam of concentrated light produced by a special machine. It is used for cutting very hard materials, and in many technical fields such as surgery and telecommunications. 激光
...new laser technology. …新的激光技術(shù)。

劍橋詞典

The tube that carries the laser is introduced into the abdomen through a small cut in the skin .
The laser beam heals the eye painlessly.
The laser guidance system dramatically increases the likelihood that the missile will strike home .
During surgery , doctors sometimes use a laser beam to vaporize tiny blood vessels .
There was a laser show by the harbour .