以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using st...
Dave was in a hurry to get back to work.戴夫急于回到工作岗位。Patrick often plays up when he knows I'm in a hurry.帕特里克常常明知我手忙脚乱还要调皮捣蛋。Eric left the barge in a hurry.埃里克匆忙离开了驳船。...
她试过很多伎俩去赢取男孩的青睐.She tried many ploys to get the boy interested in her.不要放过这赢取一百万元的机会.Don't pass up this chance to win a million dollars.我来是替他赢取胜利,好让他在我的心里获得平安.I came to win him his triumph so that hewill be at peace...
Yemen commands the strait at the southern end of the Red Sea.也门完全控制着红海南端的海峡。This is the final boarding call for Flight 664 to Yemen.飞往也门的664号航班即将起飞,这是最后一次登机广播.KC : So we have a major operation happening in Yemen right no...
药物提高了脑波同步.The drug produces an increased synchrony of the brain waves.MCStudy2声光刺激法对脑波变化产生的影响较大.MC Study 2 had more effect on the change of EEC waves.冥想时的脑波改变.During meditation brain waves alter....