The text provides a practical electric circuit, it can realize switch between ISP state and normal operation state for P89C51RD2.
本文提供一种实用电路，使得8位单片机P89C51RD2方便地实现ISP状态与正常运行状态的切换。
The new practical design method and design circuit for multi-state control of multi electric machinery are provided in this paper by using the method of logical function.
通过运用逻辑函数的方法，对多台电机多种状态控制线路提出了新型实用的设计方法及设计电路。
On the base of practical transformer substation main connection, electric components and system circuit model are first formed in the paper;
本文针对中低压变电站的实际主接线建立各电气元件及系统的电路模型；
The principle, feature and adjusting method of four applied electric circuit are introduced by practical questions in the seismological and magnetic observation.
以测震和地磁在工作中遇到的实际问题为例，介绍了四例应用电路的原理、特点和调试方法。
Brief Introduction of the Application of Secondary Electric Circuit Measures of Anti-Interference in Dalate Power Plant Practical Production.
浅谈二次回路抗干扰措施在实际生产中的应用。
It expounds how to use non-contact switch to stop the short circuit of the electric apparatus and lamp circuits etc. from sparking, and shows experimental and practical parameters.
阐明了如何使用无触点开关来防止电器线路及灯具等短路产生的火花，并给出了实验和实用参数。
In comparison with traditional electric baker, it saves the power Baker plus and power circuit cost, economic and practical.
与传统电烤炉相比，可省去电力增容和配电线路等所 需支出，经济实用。
In comparison with traditional electric baker, it saves the power Baker plus and power circuit cost, economic and practical.
与传统电烤炉相比，可省去电力增容和配电线路等所 需支出，经济实用。
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