In this paper a new method on the dimethyl malonate has been proposed.本文通过对丙二酸二甲酯合成新方法的研究,收率达到80%以上.Aside from removing the malonate, how can this inhibition of respiration be overcome? Explain.除了去掉丙二酸之外, 还可以怎样克服这种对呼吸作用的...
Aside from removing the malonate, how can this inhibition of respiration be overcome? Explain.除了去掉丙二酸之外, 还可以怎样克服这种对呼吸作用的抑制? 解释.In this paper a new method on the dimethyl malonate has been proposed.本文通过对丙二酸二甲酯合成新方法的研究,收率达...
A clod of silt can easily be crumbled in the fingers.手指能很容易把一块泥土粉碎.Eisenhower, clod and grumpy, said, " Well, I thought you should have done this a long time ago. "艾森豪威尔冷淡而粗暴地说: “ 唔, 我认为你早就应该这样做了. ”These people can blow ...
人们总认为我是个傻瓜，想必他们是对的。People always think I'm a fool, and I dare say they're right.他竟然跟她扯到了一起，真是傻瓜！He'd been a fool to get involved with her!马克称自己被搞得像个傻瓜。Mark claimed he was made to look a nerd....
He was found desperately trying to untangle several reels of film.他被撞见拼命想要解开几盘缠在一起的胶卷。The Ministry desperately tried to hush up the whole affair.部里拼命想隐瞒整个事件。His gross misman-agement left the company desperately in need o...
Astronaut Pierre Thuot tried to latch the 15-foot robotic arm onto the satellite.宇航员皮埃尔·索特想要把这个长15英尺的机械手安到人造卫星上。Astronaut Michael Good rides Atlantis'remote manipulator system arm during a spacewalk.宇航员迈克尔良好乘坐亚特兰蒂斯&...
MacMillan's music characteristically makes a dramatic impact.麦克米伦的音乐一向给人很大的触动。He replied in characteristically robust style.像以往一样，他的回答铿锵有力。MacTavish was characteristically forthright in his reply.麦克塔维什以其一贯的直率作了回答....