读码器是，维码的升级版二维码。
...仪器都不能读取readiness的话，它就不是一个标准的支持OBD功能的诊断仪(generic scantool), 充其量只能算一个读码器(code reader)。
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提出了一种采用单读码器件的串行编码绝对式光学编码器，介绍了其工作原理和基本结构。
The presented absolute optical encoder is based on a serial encoding method with single code detector. Its working principle and structure is described.
本文的研究工作主要围绕着读码器的设计与实现展开，文中阐述了读码器硬件部分的设计；
The primary work of this thesis is about designing and realization of Preventing-Forgery Code Reader. It includes the hardware system designing;
移民官仍然得打开电子护照，阅读护照内容，然后用光感读码器刷条形码把持照人的档案读到显示器上，准备提几个问题。
The immigration officer still has to open the e-passport, read its contents and then swipe its bar-code through an optical reader to get the bearer's file up on a screen ready to ask a few questions.
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