A fungus is separated successfully by sampling from the Castanea mollissima field seedling roots, isolation, purification and cultivation, but its classification position need authenticate further.
从大田板栗苗根部取样，进行分离、纯化和培养，成功地分离到一个菌种，但其分类地位还有待于进一步鉴定。
参考来源 - 板栗菌根化容器育苗技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The purpose of advertising is to build a meaning domain to endow commodity with meanings so as to determine its position in social classification system.
广告的目的就是构筑一个意义场域，为商品赋予意义，从而确定其在社会分类系统中的位置。
The controversy about the classification and systematic position of Acorus L. has lasted for about two century.
摘要菖蒲属的分类和系统地位近两个世纪以来一直存在较大的争议。
This section is the core of the article, mainly in four aspects, namely combat error's characteristics, classification and the position of the combat error and its criminal responsibility.
该部分是文章的核心内容，主要包括四方面内容，分别是打击错误的特征、分类、打击错误在错误论中的定位及其刑事责任。
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