Merchant ships salute each other by dipping the flag.商船互相点旗致敬.Serve a bowl of warm tomato sauce on the side for dipping, if desired.如果你喜欢，可以上一碗热番茄调味汁来蘸着吃。She kept dipping into the bag of sweets.她不断地伸手从那袋糖果里拿糖吃.Large stac...
Many people from opposite sides of great gulfs have been very curiously brought together!许多本来是天各一方的人,莫明其妙地碰在一块儿了.There are many gulfs in the world.世界上有许多海湾....
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...
To establish a method of GC detection of chloroacetone in the air of workplace.建立工作场所空气中氯丙酮气相色谱测定方法.Benzbromarone was synthesized from salicylaldehyde by condensation with chloroacetone, reduction, acylation, demethylati...