实验室用浓硫酸和乙醇制取乙烯时常会看到烧瓶中液体变�并在制得的乙烯中混有co2so2等杂质某同学设计了如下装置通过使弹簧夹k1和k2 Template




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tomski实验室用浓硫酸和乙醇制取乙烯时常会看到烧瓶中液体变�并在制得的乙烯中混有co2so2等杂质某同学设计了如下装置通过使弹簧夹k1和k2 coloring