二等车厢非常闷热，满鼻子旧红绒椅垫的陈年味道。
The daycoach was hot, full of the weary smell of old red plush .
介绍了制作高档牛二层细绒鞋面革生产工艺中的几道关键工序。
The key manufacture technologies of top grade fine suede cattle upper split leather were introduced.
利用季铵盐的固色原理，将二甲基二烯丙基氯化铵与丙烯酰胺的聚合物pda应用于绒面革固色。
The quaternary ammonium salt polymer PDA was applied on dye fixation process for pigskin suede leather on the basis of dye fixation principle of quaternary ammonium salts.
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