The air permeability and the randomness of air permeability test of different shoe upper leather, shoe lining single -layer material and compounded samples were studied.是什么意思_The air permeability and the randomness of air permeability test of different shoe upper leather, shoe lining single -layer material and compounded samples were studied.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句