理学 计算机输入输出设备 释 optical mark reader; OMR 光学标记阅读器 是一种标记输入设备。该设备用光学扫描的方式识别并获取按一定格式印刷或书写的标记，并转化为计算机系统能够接收识别的数字文件。简称光标阅读器。
计算机硬件 输入输出设备 释文 optical mark reader, OMR 光学标记阅读器
- heading of an article
- Heading South
- head kidney
- headlamp
- head landing zone
- headless abscess
- headlight
- head loading mechanism
- head loading zone
- head loss
- head, magnetic head
- Headman
- head mask of opera
- headmaster
- headmaster-in-charge system
- head mounted display
- head mounted display, HMD
- head normal form
- Head of Alexander
- head of an arrow
- head of comet
- head office
- Head Office of Xinhua Bookstore
- head of hydraulic turbine
- head of hydroelectric power station