以下为句子列表：
英文: This paper deals with some important principles of using agricultural chemicals considering environmental security is concerned, and also suggests specific indexes of appraising the effect of chemical use on natural environment and the scientific appraisi
中文: 本文主要讲述了化学农药的投放使用针对环境所提出的重要原则，并提出了评价农药对生态环境安全性的具体指标以及科学的环境评价程序。
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