然后通过大量实验筛选出两种有效添加剂环丁砜和六次甲基四胺.Following that, two effective additives - syclotersuphone and methenamine are found by series experiments.我们来讨论六亚甲基四胺.We examine the study of hexamethylenetetramine.以氨水、氯乙酸为原料,以六亚甲基四胺为相转移催化剂,...
The Sultan was still nominally the Chief of Staff.苏丹仍是名义上的参谋长。Nominally she is the king's prisoner.名义上她是国王的囚犯。Dad, nominally a Methodist, entered Churches only for weddings and funerals.爸名义上是卫理公会教徒, 可只去教堂参加婚礼和葬礼....
I love these colours because they symbolize mellowness, abundance , strength and happiness.我喜欢这秋色,因为它表示着成熟 、 昌盛和繁荣,也意味着愉快、欢乐和富强.The mellowness of the cuckoo report the come of spring.杜鹃甜美的叫声报告了春天的来临.The cheap wine had no...
Big transcontinental enterprises jostle with one another for world markets.巨大的跨国公司[企业]互相争夺国际市场.Some small cooperative enterprises share out very well.有些小型的合作企业盈利非常极好.The community is very mixed, not least because there a...