light-beam

英 ['laɪtb'iːm] 美 ['laɪtb'iːm]

• n. 光束

英英释义

名词 light beam:

1. a column of light (as from a beacon)

例句

用作名词 (n.)

1. A light beam rushed to the night sky.
   一道光束冲向夜空。
2. A beam of light produced by a laser can weldmetals.
   激光器发生的光束可以焊接金属。