以对氨基水杨酸为原料,经酯化 、 酰化和烃化反应得乙氧苯酯,总收率为87.Ethopabate is prepared via esterification, acylation and alkylation from p - aminosalicylic acid in 87.在阀杆孔内的后座上镀镍,可应用在严酷的烃化环境.Nickel plated overlay on backseat in stem hole to combat...
由于农村的工厂纷纷裁员，人们逐渐流向城市。As rural factories shed labour, people drift towards the cities.我在地图上勾勒出这条河的流向。I traced the course of the river on the map.这条小河弯弯曲曲缓慢地流向大海。The stream meanders slowly down to the sea....
A compound of hydrogen with another, more electropositive element or group.由硅和另一种阳性更强的元素或基组成的化合物.Is electropositive second liver big how are 3 this world treated?阳性乙肝大三阳怎么治疗?A compound of phosphorus and a more electropos...
There's been a lot of posturing on both sides.双方有很多时候都是在装腔作势。She was posturing a model.她正在摆模特儿的姿势.She says the President may just be posturing.她说总统也许只是在做样子而已。...
其中涉及到有关宪法的一些重大问题。Important questions of constitutional law were involved.此举超出了宪法的规定范围。The move was extra-constitutional.会谈旨在为新宪法的正式商讨扫清道路。The talks are meant to clear the way for formal negotiations on a new constitution...
This served to hide the confusion and imprecision in their thinking.这个被用来掩盖他们思想的混乱和不准确。The official was forced into technical terms by the imprecision of the ordinary words.由于日常用词意义含混,那官员不得不改用术语.The imprecision of the ru...