First chapter I embarks the external invasion species outline.
第一章主要从对外来入侵物种的概述出发。
The route of invading and the harm of the external invasion plants were analyzed. Some Suggestions about prevention were put forward.
对这些植物的入侵途径和危害进行了分析，并提出一些防治建议。
The external creatures invasion was the important part in the creatures security region in recent years.
外来生物入侵是近年来生物安全领域的重要内容。
The external creatures invasion was the important part in the creatures security region in recent years.
外来生物入侵是近年来生物安全领域的重要内容。
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