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shu mu qu chong xin fa
Author(s): 
Pages: 24
Year: Issue:  4
Journal: Yunnan Forestry

Keyword:  树木不良影响高压电流松毛虫驱虫害虫毫安驱除下部上部;
Abstract: <正> 在树干的上部与下部之间,瞬间通入20—40毫安、800—1500伏的高压电流即可驱除侵入树木的松毛虫一类的害虫,并且对树木本身无任何不良影响。这一方
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