LPRC Local Primary Reference Clocks 本地基本参照时钟，地区基准时钟 LPS Laser Printing System 激光打印系统 LPS Line Printer Simulator 行式打印机模拟器 ..
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报告了为YC—4020型激光视网膜测试仪配制的单片机控制系统的软件、硬件和打印部分的设计及原理。
The design and principle of the hardware and software and the printing part of the YC-4020 laser retinal - cerebral MTF tester are introduced in this paper.
使用这款新的激光打印机系统，您的机械不会有产品损失。
With this new laser printing system your machine will not have a loss of production.
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