...a place full of swings and amusements.装有秋千并设有许多娱乐活动的地方They should not be treated only as amusements.不能把它们单纯看成是娱乐活动。People had very few amusements to choose from. There was no radio, or television.人们几乎没有什么消遣可以选择。没有广播，也...
The Roman gladiatorial contests were bestial amusements.罗马角斗是残忍的娱乐He hasn't enough money for food, let alone amusements.他连吃饭钱都不够, 就更不用说玩儿的钱了.Big cities have many amusements.大城市有许多娱乐....
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...