N → the plural of phylum
Bacteroidertes, Firmicutes, Spirochaetes, and Fibrobacteres were the most abundant in rumen under phyla level.
门级以下瘤胃内最多的是拟杆菌、厚壁菌门、螺旋体和纤维菌门。
Most belonged to four phyla: Actinobacteria, Bacteriodetes, Firmicutes and Proteobacteria.
其中大多数分属四个门类：放线菌门、拟杆菌门、厚壁菌门及变形菌门。
Worm's team estimated the total number of genera, families, orders, classes, and phyla—a designation above class—in each kingdom.
沃姆（Worm）的团队估算每一个界中的属、科、目、类以及门类——一种高于“类”的名目——的总数。
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