架子设计为厚壁的，聚乙烯类塑料材质的加筋立柱，和保持最大稳定性的地板。
Stands are constructed of durable thick-wall, polyethylene plastic with a structurally reinforced post and fillable base for maximum stability.
有些决定，如壁厚和销轴直径，可能取决于科学的计算，但非科学的部分的设计仍然是首要的。
Some decisions, such as wall thickness and pin diameter, may depend on scientific calculations, but the nonscientific component of design remains primary.
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。
Bacteroidertes, Firmicutes, Spirochaetes, and Fibrobacteres were the most abundant in rumen under phyla level.
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