The water absorption of the resultant leather retanned with vegetable tanning agents, alterable syntans and vinyl copolymers did not change obviously.是什么意思_The water absorption of the resultant leather retanned with vegetable tanning agents, alterable syntans and vinyl copolymers did not change obviously.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句