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residual pesticide
tech. 残留性农药; 残留杀虫剂
residual pesticide A pesticide remaining in the environment for a fairly long time, continuing to be effective for days, weeks, and months
environ. 残留性农药 (在环境中保留时间相当长的农药，有效时间持续达几天、几周和几个月。)
residual pesticide: 5 phrases in 3 subjects
Chemistry1
China1
Technology3

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