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农药的使用应本着安全、有效、经济的原则。科学使用农药,既能降低病虫草鼠的危害,不污染环境,又能增产增效。
The use of pesticides should be based on safe, effective and economical principle. Scientific use of pesticides, both to reduce the harm of pests and weeds, not polluting the environment, but also increase production efficiency.