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....
植物茎往上长时表现出负向地性.The main stems of a plant show negative geotropism as they grow upwards.根系向地性变化可由缺磷等因素所诱导, 且存在著一定的遗传变异性.Root gravitropic responses are adaptive , inheritable traits induced by low phosphorus availability a...
The degree provides a thorough grounding in both mathematics and statistics.该学位课程将为数学和统计学打下扎实的基础。This degree programme is fully accredited by the Institution of Electrical Engineers.这门学位课程经电气工程师学院鉴定完全合格。The psychiatrist ...