Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰酸酯为主要原料，制备了一种耐光型水性聚氨酯皮革涂
。
Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰酸酯为主要原料，制备了一种耐光型水性聚氨酯皮革涂。
明：以上例
、词性分类
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