他从未表现出他前任的那种近乎傲慢的自信。He has never exhibited the self-confidence, bordering on arrogance, of his predecessor.潜意识里的嫉妒常表现为这种傲慢自大。Unconscious envy manifests itself very often as this kind of arrogance.他傲慢无礼地朝元先生冲过来,面露怒容。He ca...
Optimized synthesis of lipase - catalyzed hexyl ester in supercritical CO 2.以反应区面法研究脂解酵素催化酚酸酯类合成之最优化.Objective To study the catalytic activity of potassium bisulfate in synthesizing hexyl hexanoate.目的研究硫酸氢钾在合成己酸己酯工艺中的催化性...