... 目的时间 {自} object time; destination time; 目的树种 purpose species of trees; 目的数据 destination data; ...
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其目的是扭转树种数量下降的趋势，或至少保存所有树种的“遗传物质”。
The aim is to reverse the decline in the number of tree species or at least to preserve the "genetic material" of all of them.
在此基础上，分别讨论并提出了中国实施CD M林业项目的区域、树种和林种的合理选择。
On the basis, the reasonable choice of areas, tree and woods sorts of CDM forestry project in China are discussed.
研究椴树韧皮分泌物其目的则是提取、利用该物质用于非抗树种提高抗虫性和免疫力。
The aim of this research is to extract and utilize secretion of phloem of Tilia mongolica that use them to increase the zoophobous ability and phylactic power of non-resistant tree species.
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