久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

新型梳棉機(jī)在落卷時(shí)皮板輸送帶(或皮圈,圍裙)運(yùn)行受阻.Obstruction in the movement of Aprons during doffing in modern cards.并研究了兩種不同的鞣制方法對(duì)皮板組織結(jié)構(gòu)的影響.The effect of different tannage on structure of sheep skin was also studied....

“皮板”的拼音為：pí bǎn...

“皮板”的英語可以翻譯為：dermatotome，dermatome，fell ...