preventive strike

1. Regarding the special topograph and landforms, It particularly analyses the characteristics, reasons, and preventive measures of lightning strike of 220 kV and above transmission lines of shanxi power network, and puts forward the countermeasures.
   针对山西省特殊的地形地貌详细分析了山西电网220kV及以上输电线路雷击跳闸的特点、原因和防范措施，并提出对策。
2. Begins to emphasize preventive measures, but still insists on the strategy of preemptive strike;
   开始重视预防性措施，但依然坚持先发制人的战略选择；

noun

1. a strike that is carried out in order to deter expected aggression by hostile forces

   Synonym:    preventive attack