Once again the separated oil share, through the outer packing filtration layer grooves, also will be back to the bottom of the tubing oil room.

再一次分离出来的油份，通过填料过滤层外缘的凹槽，亦将由回油管回到底部的油室。

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Filtration depends on the development of a thin biological layer, called the zoogleal layer or Schmutzdecke.

过滤取决于薄薄的生物层的发展，该薄层称为动物神经层或去污层。

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However, the higher the filtration rate, or the presence of viscous or low porosity dust layer, should take a slightly higher value.

但若采纳较高的过滤速度，或存在粘性或低孔率的尘埃层，应取稍高的数值。

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