在底部的

They painted the underside of their planes with a black varnish.

他们在飞机涂上了一层黑漆。

The posterior pituitary (neurohypophysis) is the smaller portion at the bottom.

在垂体较小分是垂体后叶（神经垂体）。

Dregs settled at the bottom of the container.

渣滓沉淀在容器。

Arrector Pili are tiny muscles attached to the base of the hair follicles.

竖毛（立毛）是一些附着在毛囊细小肉。

Contain rubiginous water quality and the palm spot that produces in cell body bottom basically is created.

在槽体产生棕斑主要是由于新水管中水质而造成。