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日本采用通电法杀灭树木害虫,效果显著。具体做法是:在树干的上部,瞬间通入800—1500伏、20—40毫安的电流,即可杀
Japan uses electricity to kill tree pests, the effect is remarkable. The specific approach is: in the upper trunk, instant access 800-1500 volts, 20-40 mA current, you can kill