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

制革把容易腐烂的动物皮转换成稳定的、不会变质的材。

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

制革污水采预曝气处理后，可大大提高初沉池沉淀效果。

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

那位制革工人树皮的溶处理了一皮，把它做成了柔韧的皮革。

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制革的脱灰，研究了超临界CO2的压力、温度、时间及工艺对脱灰和脱脂的影响。