Classifications which appeared during the nineteenth century were therefore devised in a lively and dynamic environment . 十九世纪的分类是在一个充满活力，生气勃勃的气氛中创立的。
The phytosociologist will state the class concept according to his interests and view of what is important for classification . 植物群落学家们在分类上按其各自的喜好来表述类级概念的。
Such thermosetting resins as phenol-formaldehyde resins, ployester resins, and epoxy resins do not belong to this classification . 像酚醛树脂、聚酯树脂和环氧树脂等热固性树脂不属于此类。
Some systems for the classification of climates seek to define climatic units that will correspond to major formation-types . 一些对气候的分类系统倾向于以相应的主要群系型来范定气候的单位。
Such a gross classification certainly does not take into account the many smaller ribosome size differences reported . 这样一个粗略的分类自然没有考虑到已有报道的大小不同的许多较小的核蛋白体。
The notation is essential for the practical application of a book classification scheme, and offers many practical advantages . 标记符号对于图书分类法的实际应用极为重要，而且具有许多实用的优点。
Classification of steppe vegetation was developing principally in connection with the zonal division of the vast steppe areas of russia . 草原植被的分类主要是在俄国广阔草原区的地带划分方面发展起来的。
The importance of units of the plant cover broader than the phytocoenose for classification is acknowledged by soviet geobotanists . 苏联地球植物学家认识到，比植物群落较广泛的植被单位对于分类的重要性。
