The mass fraction of n - butene in mixed C 4 from catalytic cracking after etherized was approximately 40 %.醚化后的催化裂化混合C4中含有质量分数约为40%的正丁烯,是生产丙烯的优质原料....
She is the town clerk and a certified public accountant and notary public.她身兼城镇文书、执业会计师和公证人数职。They include notaries, assistant notaries, and other people working for notary offices.包括公证员 、 助理公证员和在公证员和在公证处工作的其他人员.That not...
聚会上的食物碟满盘盈。Plates overflowed with party food.那小男孩吃了好几满盘冰淇淋.The boy ate several dishfuls of ice cream.她吃了一满盘后又回来再盛一盘.She had one plateful and then went back for another one....