This paper gives a brief introduction about characteristics of electrostatic discharging, brush discharging, spark discharging and the igniting power of electrostatic.

简介静电电晕放电、刷形放电、火花放电的特点及静电引燃能量。

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Describes the principles and characteristic of several surface field repair technology: electro-spark deposition, thermal sprays, brush plating.

前言：介绍三种常用表面强化技术即电火花沉积、电刷镀和热喷涂的原理和特性。

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The techniques for repair are studied after crack arrest in metal dies using electromagnetic heating, such as electrical spark melt joining, reinforced build-up welding and brush electroplating.

研究了各种实际金属模具中裂纹电磁热止裂后的修复技术，如电火花放电熔焊搭桥、强化堆焊、刷镀等；

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It was caused by a private landowner clearing vegetation with a weed trimmer, which may have hit a rock and produced a spark that ignited the dry brush, U.S. Forest Service spokeswoman Linda Christman said.

CNN: Firefighters make headway in California wildfire