基本解释勒芬同根派生 Lefin相关词英汉例句Keywords Microcellular polymer;Supercritical CO 2;Cyclic o lefin copolymer blends;Cell structure; 微孔聚郃物;超臨界CO_2;環烯烴共聚物共混物;微孔結搆;Lefin更多例句