在催化剂存在下,用双氧水氧化乙二醛溶液快速合成了乙醛酸.Glyoxylic acid was rapidly synthesized by catalytic oxidation of glyoxal with H 2 O 2.利用报废的液体推进剂硝酸-27S和乙醛制备乙二醛.Glyoxal is prepared with waste liquid propellant HNO 3 - 27 S and ethanal.乙二醛 、 乙...
Myth 12 : I must hae a hysterectomy to treat cervical cancer.误解 12: 我必须采取子宫切除术治疗宫颈癌.Its are orderly: The head - cervical - two upper limbs - pectoral abdomen - back - two ham - two crus.其顺序为: 头部 - 颈部 - 两上肢 - 胸腹 - 背 - 两大腿...
The most valuable find of all was the ship's log book.在所发现的东西中,最珍贵的就是那艘船的日志.Log down the incident in the Log Book for Management review.在记事本上记录事件以便管理层检查.Enter the measured figures in the engine log book.将测量数字登记在轮机日志...
And as in China, unrest and even insurgency are widespread.而在中国, 动乱甚至暴乱都普遍存在.Dr Zyphur is part an insurgency against this idea.塞弗博士是这一观点逆流的一部分.Mr Patrick seems to relish his insurgency , though , and most expect him to k...