Risk assessment is one of the most effective measures to prevent invasion of alien species.
外来物种风险评估是防止外来物种入侵的最有效手段之一。
With frequent human activities, invasion of alien species are becoming increasingly serious.
随着人类活动的日趋频繁，外来物种入侵也日趋严重。
It is of great importance for all countries to prevent the invasion of alien species by application of laws and regulations.
通过法律规制外来物种入侵是各国防治外来物种入侵采取的重要手段之一。
The ways of invasion of alien species are examined, mainly: introduction by people intentionally or not intentionally, and introduction by natural factors.
本文分析了外来生物的入侵途径：人类有意引入、随人类活动无意传入以及非人为因素的自然传入。
The researching object of this essay is how to deal with the alien species invasion problem that becomes more and more serious in GMS from the angle of law.
本文研究的对象就是澜沧江—湄公河次区域应如何从法律角度来应对在正日趋严重的外来物种入侵问题。
Alien biological species invasion has become one of serious global environmental problems.
外来生物物种入侵已成为严重的全球性环境问题之一。
Alien biological species invasion has become one of serious global environmental problems.
外来生物物种入侵已成为严重的全球性环境问题之一。
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