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 计算机硬件 输入输出设备 释文 optical mark reader, OMR 光学标记阅读器
- ballast resistor
- ballast resistor, barretter
- ballast track
- Ball Bearing
- ball clay
- ball dance
- Balleny Islands
- Ballerina on the Boat
- Ballet
- ballet costume and shoe
- ballet in Europe
- balleting
- Ballets Russes
- Balletto
- ball exercise
- ballgame fan
- ball grid array
- ball grid array, BGA
- ball grinding process
- ball hardness testing machine
- Ballik-Ramsay band
- balling effect in selective metal powder melting and forming
- Balling inhibitor
- ballistic
- ballistic aggregate