【正文快照】： 1引言保护环(Protection ring)和安全内核(Security kernel)是提高操作系统安全性的两种重要方法[1].
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使用保护环（Guard ring）: P+ ring环绕nmos并接GND；N+ ring环绕 pmos 并接VDD，一方面可以降低Rwell和Rsub的阻值，另一方面可阻止 载流子到达BJT的基极。
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... protective relaying 继电保护 protective ring 保护环 protective screen 防护屏，防护屏蔽 ...
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保护环境 environmental protection
节约资源和保护环境的基本国策 basic state policy of resource conservation and environmental protection ; the basic state policy of conserving resources and the environment
坚持节约资源和保护环境 conserve resources and the environment
文件保护环 fileprotectionring ; [计] file protection ring
双纤单向通道保护环 Two-fiber unidirectional path protection ring
保护环探测器 guard-ring detector
二纤双向通道保护环 Two-fiber bi-directional path protection ring ; directional path protection ring
保护环式电容器 guard ring type capacitor
写入保护环 WPR WriteProtectionRing ; WPR ; write protection ring WP
The electric field with guard electrodescompare with the electric field without guard electrodes. The parameters of thecapacitance are optimized.
仿真比较了加保护环前后的电容电场的变化,优化了电容两极板的结构参数。
参考来源 - 用于钢轨温度应力检测的电容式位移传感器的结构研究·2,447,543篇论文数据，部分数据来源于NoteExpress
反色保护环之类的牌不会再起作用。
Circles of Protection and similar CARDS won't do anything at all.
介绍了合成氨生产中多级离心式打水泵密封保护环的改造。
The improvement of Multiple centrifugal pump sealing protection ring for ammonia production was introduced.
利用保护环和安全内核的功能，提出了一种新的增强操作系统安全性的模型。
With function of protection ring and security kernel, a novel model for enhancing security of operating system is proposed.
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