环境安全研究目前主要停留在定性描述或定量评价自然生态安全阶段。
The research on environment security mainly rested on the stage of qualitative description on environment security or quantitative assessment of natural eco - environment security.
水生甲壳动物在水生态系统和环境安全评价中居于重要的地位，它们对存在于水中的外源化合物的影响非常敏感。
In the aquatic ecosystem and environmental safety evaluation, aquatic crustacean are of important position and function, and they are very sensitive to the effect of xenobiotics.
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