The principle and design method of practical drive circuit for GTR with self protection is introduced. The withdraw saturation protection of this circuit is also tested.
介绍了一种实用的GTR自保护驱动电路的原理及设计方法，并对该电路的退饱和保护功能进行了测试。
We illustrated the application of self potential method and its effect with practical example in the urban water resource protection project.
以实例说明了自然电场法在城市水源保护工程中的应用和效果。
Method; The questionnaire about the knowledge on self - protection was used and 166 nurses were selected.
方法：采用问卷调查法对166名护理人员关于卫生保健、防护知识等内容进行调查分析。
Method The self protection after encountered of 240 nurses with different education were investigated with self-made questionnaire.
方法采用自行设计的问卷，对240名不同学历护士在护理操作中针刺伤后的自我防护进行调查。
Based on the ping-pong type field grounding protection, it presents one-point-to-ground protection scheme by integrating the self-checking method of switches.
针对乒乓式励磁回路接地保护，结合开关自检方法提出了完整的一点接地保护方案；
The method is of environmental protection, simple technology and high efficiency, does not affect the strength of wool self, and can well fulfill requirements of consumers.
该方法环保，不影响羊毛本身的强度，工艺简单，效率高，能够较好地满足消费者的要求。
The method is of environmental protection, simple technology and high efficiency, does not affect the strength of wool self, and can well fulfill requirements of consumers.
该方法环保，不影响羊毛本身的强度，工艺简单，效率高，能够较好地满足消费者的要求。
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