转子一点接地保护采用变电桥原理，增强了反应过渡电阻的能力。
The rotors one point grounded protection adopts variable electricity bridge principle and can reflect transition resistor better.
方法设计电桥式、灯罩式气管切开保护架，与气管切开常规保护法进行痰液污染状况比较。
Method Design conducting bridge type and light cover style tracheotomy protective rest, and compared the protecting effect of sputum pollution with routine methods.
并对勃鲁宁电桥、动态基准（或取样—保持）电路以及HW-1型冲床安全保护器的主要性能作了分析。
Analyses are also presented of the Blumlain bridge, dynamic criterion circuit and main characteristics of press protector type HW-1.
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