Nefedipine was synthesized with m - Nitrobenzaldehyde, ethyl acetoacetate ammonium acetate.以间硝基苯甲醛, 乙酰乙酸乙酯,氨化试剂为原料.The cross - linking reaction between dialdehyde compound and cellulose acetate raises the chemical stabil...
Ethyl acetate ( 71 . 41 b ) was added to the slurry in the vessel.把醋酸乙酯 71.4 磅加到容器中的浆液内.The reverse of Reaction 11 for acetate may be combined with the electron acceptor reactions.对于醋酸盐、反应11的逆反应可以与电子接受体反应组合在一起.In benzene...
The Ambassador Hotel is a Los Angeles landmark.国宾大饭店是洛杉矶的地标性建筑之一。The Empire State Building is a familiar landmark on the New York skyline.帝国大厦是人们熟悉的纽约高楼大厦中的地标。The tower was once a landmark for ships.这座塔曾是船只的陆标....
Sergeants and corporals outnumber private soldiers.中士和下士的人数超过了列兵。Platoon sergeants fell their men in on the barrack square.排长们在营房广场上整顿队伍.Once the decision to expand was taken , the privates could become sergeants, the se...
He was that rarest of statesmen, one whose integrity disarms even his critics.他为人正直,连批评他的人也佩服他三分,在当代政治家中实属罕见.Disarm: This ability now disarms ranged weapons as well.缴械: 这个技能现在同时可以缴械对方的远程武器.He pours contempt on nobles and...
Many theories purport to explain growth in terms of a single cause.许多理论都标榜以单一的原因解释生长.What's the purport of her letter?她的信的大意是什么?Her letter may purport her forthcoming arrival.她的来信可能意味着她快要到了....