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.Butyl cinnamate was synthesized from cinnamic acid and butyl alcohol using tungstosilicic acid as catalyst.以钨硅杂多酸为催化剂,通过肉桂酸和正丁醇反应合成肉桂酸正丁酯.M...
The crowd grew restive.群众逐渐喧闹起来.When the singer was late, the audience grew restive.歌手迟迟不出场, 听众变得不耐烦了.The audience grew restive.观众变得不耐烦了。...restive national minorities.心怀不满的少数民族The government has done nothing to ease res...
这是平行四边形的对边.These are the opposite sides of the parallelogram.环面可由矩形把其两对对边分别重叠起来而得到.A torus can be obtained from a rectangle by identifying opposite sides.当各块板块彼此分离时, 他们又在对边与其它板块发生碰撞.As the plates move apart, they encount...
分析了生物磁感应电阻抗断层成像的关键技术.Key techniques for biologic magnetic induction tomography are analyzed.颅内组织电特性主要参数是颅内组织电阻抗.Encephalic tissues impedance is the main parameter of encephalic tissues electrical characteristics.生物电阻抗分析法...