目的: 合成新的双-胡椒醛缩二胺类席夫碱化合物.Methods: Five Schiff bases were prepared from piperonal and diamines by condensation reaction.用胡椒醛为起始原料,经氯化 、 水解、缩合,制得血凝酸胺.After the process of chlorination, hydrolytic decomposition and condensat...
The Pope bluntly told the world's priests yesterday to stay celibate.教皇昨天直言全世界的神父都应该禁欲。I've been celibate for the past six months.我已禁欲六个月。The instinct of the celibate warned him to hold back.单身汉的本能告诫他回头是岸....
Specific lipase - catalyzed interesterification, especially acidolysis is reversible reaction, leading to equilibrium.酶促酯交换反应, 尤其酸解是一种可逆反应, 即反应有平衡点,山于平衡的原因,通过这种反应得到的最终产品的得率不理想.After FP acidolysis, the lignin was once aga...
Fizzy lemonade can be very gassy.有的汽水气很足.They had potato chips, fizzy drinks and chocolate at the party.他们为派对准备了薯片, 汽水和巧克力....fizzy water.汽水He still visits the village shop for buns and fizzy pop.他仍然去村里的小店买小圆面包和汽水。...a c...
His crewmates, Commander Frank Borman and Command Module Pilot Jim Lovell, followed with more verses.他的同事, 指令长法兰克.鲍曼和指令仓飞行员杰姆.罗凡尓接下去念了更多的词句.He quotes a few verses from Tennyson in his paper.他在论文中引用了英国诗人丁尼生的几行诗句.Caroline ...
董事长宣布休会到三点种.The chairman adjourned the meeting until three o'clock.巡逻队: 指挥部,9点种方向有武装车扫射平民, 请准许攻击!Patrol party: Conductor department the direction have armed the car strafe a civilian, please allow attack!继续点种, 种的快乐却...