理学 计算机输入输出设备 释 bar code reader; BCR 条码阅读器 一种用于读取条码所包含信息的输入设备，可分为一维、二维条码阅读器。又称条码扫描器、条码扫描枪。
计算机硬件 输入输出设备 释文 bar code reader, bar code scanner 条码阅读器
- Gagarin crater
- Gagauzia
- gage
- gagger
- gaging station
- Gagliardo
- Gagliardo lemma
- Gagliardo Nirenberg inequality
- Gagliardo-Nirenberg inequality
- Gagne's theory of instruction
- gaguang
- G. A. Hunt
- G. A. Hunt (1916—2008)
- Gaia
- Gaia Astrometry Satellite
- Gaia astronomical satellite
- GAIA hypothesis
- Gaia hypothesis
- Gaifman-Koons' paradox
- Gaihu
- Gaijiaotian
- Gai Jiaotian art of the stage
- Gai Junyi
- GAIL
- GAIM