饲油茶花粉的尼氏真绥螨性分配的初步研究 关键词]半翅目；叶蝉科；角顶叶蝉亚科；系统分类 [gap=556]Key words：I-temiptera；Cicadellidae；Deltocephalinae；systematic classification
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... IUCN category systemIUCN分类体系 new category system新分类体系 systematic classification体系分类法 ...
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It is valuable for science research in phylogeny, systematic classification, species evolution of Caprifoliaceae and a excellent ornamental treespecies.
它在研究忍冬科系统发育、系统分类和物种进化等方面具有重要科学价值，又是优良的观赏树木。
参考来源 - 七子花种群结构和致危因素研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The purpose of this paper is to offer a systematic classification of externalities. Based on this, we further discuss the core disagreement between the Pigouvian solution and the Coasean solution.
文章的目的是对外部性进行一个比较系统的分类，在此基础上，讨论外部性的科斯解与庇古解的根本分歧。
It consists of systematic classification of important industrial ores according to their technological behavior.
此学科系根据矿石的工艺特性，对主要的工业矿石进行系统分类。
But, these algorithms are more or less described on their own, and systematic classification and comparison are absent.
但是，这些算法大都是从其自身的角度来描述的，缺乏系统的分类和比较。
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