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
- ultramicroelectrode
- ultramicrometer
- ultramicropalaeontology
- ultra microscope
- ultra-microscope
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- ultramicrowave
- ultra-mylonite
- ultra-Neptunian planet
- ultranet
- ultraparabolic
- ultraparabolic differential equation
- ultraparabolic equation
- ultraparallel lines
- ultra performance liquid chromatography
- ultra performance liquid chromatography (UPLC) for pharmaceutical analysis
- ultraperiodic
- ultraphosphate
- ultraphotic rays