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- 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. 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。
- The apparent celestial origin of a meteoric shower. 流星群的辐射点明显的流星雨太空光源
- The origin of the universe is an ageless topic. 关于宇宙的起源的问题是个永恒的论题。
- What was the origin of the quarrel? 这场争吵的起因是什么?
- We now come to the question of pollution. 我们现在开始谈污染问题。
- Some sources of pollution have been curbed. 对原有的一些污染源进行了治理。
- There's a lot of pollution in the air here. 这里的空气有大量的污染物质。
- Scientists speculate on the origin of the universe. 科学家们猜测宇宙的起源。
- Well,let's turn to the problem of pollution. 那么,我们讨论污染问题吧。
- Unclear waste is a kind of pollution. 核废弃物是一种污染。
- It is meaningful to study the origin of life. 研究生命起源很有意义。
- What kind of pollution is the most risky? 什么样的污染是最危险的?
- What is the origin of pelagic oozes? 远洋软泥的来源是什么?
- Any kind of pollution will do harm to health. 任何污染都会危害健康。
- I'd like to clear up the point of pollution. 我想弄清楚污染的问题。
- It has nothing to say to the origin of the word. 这与该词的词源毫无关系。
- Retrospect and prospect of pollution ecology. 污染生态学研究的回顾与展望。
- Legends about the origin of this festivity abound. 关于腊八节起源的传说有很多。
- On the subject of pollution, it's a global problem. 有关污染,这是个全球性问题。
- The belly button symbolizes the origin of life. 肚脐的意象象徵著生命的起源。