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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Despite faster emergency squads, deployment of automated defibrillators at airports and other public places, and improvements in cardiopulmonary resuscitation techniques, fewer than 10% of the 300, 000 Americans who suffer cardiac arrest each year survive long enough to leave the hospital a rate that hasn't budged much over the years.

WSJ: How Therapeutic Hypothermia Saves Lives of Cardiac Arrest Patients