Antioxidant tertiary butyl hydroquinone was prepared by hydroquinone and tertiary butyl alcohol.由对苯二酚与叔丁醇反应制得抗氧化剂叔丁基对苯二酚.They were good catalyst for synthesis of n - butyl cinnamate.它们是催化合成肉桂酸正丁酯的良好催化剂.A method of synthe...
ITT was stagnating when Geneen became the chief executive officer in 1959.1959年吉宁出任行政总负责人时,国际电话电报公司正处于不景气时期.Industrial production is stagnating.工业生产正停滞不前。I feel I'm stagnating in this job.我觉得我干这份工作没什麽前途.Industrial p...
A great dog scorns the snarling of a little dog.一只大狗瞧不起一只小狗的咆哮.He scorns the 'pot-luck' approach.他对这种“碰运气”的方法不屑一顾。He scorns the "pot-luck" approach.他对这种“碰运气”的方法不屑一顾。She scorns the visible trappings of success, ...