介绍了与电推进系统有关的空间环境效应的形成原因及其对航天器性能、寿命等的影响。
The reason of space environment effect related to electric thruster system and its affection to performance and lifetime of spacecraft were introduced in this paper.
本文扼要介绍了深海采矿的环境效应，重点研究了深海采矿对大洋生态系统特别是对底栖生物、浮游生物、食物链结构等的影响。
In this paper environmental impacts of deep ocean mining are briefly reviewed, with emphasis on the effects on oceanic ecosystem. They include effects on benthos, planktons, food chain and so on.
本文对二恶英的理化性质、分析方法、毒性、来源、污染的产生及其环境效应对人体健康的影响进行了评述。
This article makes an analysis on the physical and chemical nature of dioxins, its analysis method, toxin, origin of pollution and its environmental effect on human body.
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