结果表明，随着NBR中结合丙烯腈质量分数的增加，NBR/PVC共混胶的耐油性能明显增强，力学性能也相应有所改善；
The oil resistance and mechanical properties of NBR/PVC blends were improved with the increase of mass fraction of acrylonitrile of NBR.
结果表明，随着NBR中结合丙烯腈质量分数的增加，NBR/PVC共混胶的耐油性能明显增强，力学性能也相应有所改善；
The oil resistance and mechanical properties of NBR/PVC blends were improved with the increase of mass fraction of acrylonitrile of NBR.
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