exotic species

while exotic species should not be excluded for special reasons or purposes, native tree species should be preferred as a matter of principle.

不应因特别原因或用途而完全排除外来的品种，但仍应以本地品种为优先。

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benefits evaluation on geographic provenance trial forests of exotic species

国外松地理种源试验林效果分析

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however, it may also include exotic species of non- baryonic dark matter, such as supersymmetric particles, axions or black holes.

重的可能组成非重子暗物质的物质可能有超对称粒子、黑洞等。

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Accurately defining the meaning of exotic species;

准确理解外来入侵物种的含义；

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Studies on the Nutrient Ecology of Water Hyacinth ( Eichhornia crassipes), an Exotic Invasive Species

外来入侵种凤眼莲（Eichhornia crassipes）的营养生态学研究

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Native species are preferable to exotic plants.

相对外来物种,优先选择土著物种.

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the botanical garden is an ideal place to plant and cultivate a variety of exotic species.

植物园是种植和培育各种异域物种的理想场所。

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Clarification of indigenous and exotic species is very important for floristic analysis and vegetation restoration.

澄清一个地区的植物来源对于植物区系分析及植被恢复是很重要的.

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The composition, origins, growth form and habitat of exotic plants in Shandong are discussed too. The results shows that: ( 1) 348 species were imported from other countries, and there is high proportion of exotic species root in America, Asia and Europe;

山东省外来植物区系的种类组成、原产地、生长型、生境和危害程度分析表明：（1）来源于国外的植物共384种，其中美洲、亚洲、欧洲来源比例高。

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Biological invasion , exotic species , native species, invasion ecology and related concepts were discussed.

探讨了生物入侵 、 外来种及入侵种等相关的概念.

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Hyphantria cunea Drury is a exotic species and has invaded and spread to Liaoning, Hebei, Tianjin, Shandong, Shanxi and Shanghai.

美国白蛾为外来入侵种，现已扩散蔓延到辽宁、河北、天津、山东、陕西、上海等省市。

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Our majority products is edge banding veneer both for domestic and exotic species, includes rolling type, flake type, Horizonal-grain veneer and cladding veneer.

国产、进口木皮，木皮封边条，有卷状品、片状品、横纹品、包覆木皮、竹皮等。

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By simulating species longevity, breeding potential and allelopathy of exotic weeds based on the cell automatic model, the paper studies the effect of the ecological characters of exotic species on their space pattern.

利用细胞自动机模型，通过分析外来杂草的寿命、繁殖能力及化感作用，模拟研究这些特性对外来物种在空间格局变化上的作用。

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Photosynthetic characteristics of several exotic species in dry season in Yuanmou County

元谋干热河谷几种外来树种在旱季的光合特点

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National Management Strategy for the Exotic Invasive Species

外来种入侵管理的国家对策

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And you should never release it into the wild, even if you get tired of it, because the exotic species can damage local ecosystems.

而且即便你厌恶饲养巴西龟了，也决不能将它们随便放生，因为这种外来物种会破坏当地的生态系统。

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The leaf venation of eighty-nine species, including two exotic species, were cleared and observed.

制作并观察了89种植物叶片的脉序, 其中2种为外国种.

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That both indigenous species and exotic species should be recorded separately for Nature Reserve was suggested.

自然保护区管理部门不仅要建立本土物种的档案,也应建立外来物种的档案.

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