The results show that there are protozoa(main infusorian)and mini-metazoa(rotifer and daphnia)communities in PFU.
结果表明：PFU中的原生动物主要是纤毛虫，微型后生动物主要是轮虫和水蚤。
The tubificidae, one type of metazoa was chosen to control activated sludge bulking which was caused by filamentous bacteria.
研究了一种后生动物—颤蚓对丝状细菌引起的活性污泥膨胀的控制效果。
Owing to its distinct attribute property and old age, this discovery may have epoch—making significance on the study of the evolution of early Metazoa.
对于地球后生动物早期演化的研究具有划时代的意义。
Owing to its distinct attribute property and old age, this discovery may have epoch—making significance on the study of the evolution of early Metazoa.
对于地球后生动物早期演化的研究具有划时代的意义。
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