请输入您要查询的英文单词：

　

单词 laser pen
释义

Definition of laser pen in English:

laser pen

noun

  • 1A small, slender hand-held device emitting a laser beam, used for scanning bar-codes.

  • 2A hand-held device emitting a narrow beam of coloured light, typically used by speakers to project a visual pointer on to a screen.

Origin

1980s; earliest use found in Industry Week.

Definition of laser pen in US English:

laser pen

noun

  • 1A small, slender hand-held device emitting a laser beam, used for scanning bar-codes.

  • 2A hand-held device emitting a narrow beam of coloured light, typically used by speakers to project a visual pointer on to a screen.

Origin

1980s; earliest use found in Industry Week.
随便看

　

英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间：2025/1/30 14:59:01