制革

Using a solution of tanbark, the tanner treated the cowhide, transforming it into supple leather.

那工人鞣料树皮溶液处理了一下母牛皮，把它做成了柔韧皮。

Tanning converts the otherwise perishable skin to a stable and nondecaying material.

把容易腐烂动物皮转换成稳定、不会变质材料。

By pre aeration in tanyard wastewater, the effect of primary settling improves obviously.

污水采预曝气处理后，可大大提高初沉池沉淀效果。

Deliming using CO2 Supercritical Fluid(CO2 SCF) as reactant was investigated, and the effect of the presure, temperature and time on deliming and degrease was studied.

本文以CO2超临界流体作反应物于灰，研究了超临界CO2压力、温度、时间及工艺对灰和影响。