chemical insecticide
英
美
- 化学杀虫剂
双语例句
- It is not my contention that chemical insecticides must never be used.
我不是说人类决不能使用化学杀虫剂。 - Certain chemical pesticides used to control in- sects have also been well studied.
对一些特定的用来控制昆虫的化学杀虫剂也研究得比较多。
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