ulmus的意思|示意

Japanes elm sawfly is a kind of main phyllophagous insect to Ulmus L.

榆叶蜂是巴盟榆树的主要食叶害虫,发展速度快、食叶量大,危害严重.

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Ulmus pumila open forest ecosystem plays an important role in Otindag Sandy Land.

榆树疏林生态系统是浑善达克沙地的重要组分之一.

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A Preliminary Study on the Mathematic Model of Leaf Area of Ulmus pumila Linn.

与榆无性系叶面积数学模型初步研究>>相似的文献.

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