土壤中滴滴涕残留量偏高，是由于防治红蜘蛛时施用三氯杀螨醇，而三氯杀螨醇原药中含有滴滴涕所致。
The residue of DDT in soil is rather high due to the application of the pesticide Kelthane to prevent and kill red spider on the wheat field and the pesticide Kelthane contains DDT.
三氯杀螨醇苯油中的主要杂质能够分离。
The major impurities of dicofol 40% benzene solution were separated.
三氯杀螨醇苯油中的主要杂质能够分离。
The major impurities of dicofol 40% benzene solution were separated.
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