Thirteen per cent of Christie's coin and banknote auction went unsold.佳士得13%的硬币和纸币拍卖流拍。I put the coin in the machine and pulled the lever.我把硬币投入机器，拉动控制杆。The golden rule is never to clean a valuable coin.重要的原则是决不清除贵重...
This coin is a counterfeit.这个硬币是伪造的.Fifty local musicians have, to coin a phrase, banded together to form the Jazz Umbrella.50名当地的音乐家，用个双关词，“联合起来”（band亦有“乐队”之意）组成了“爵士乐大联盟”。The two boys agreed to decide the matter by toss...
People were making for the air-raid shelters below ground.人们正奔向地下防空洞。The rebels attempted a surprise raid on a military camp.叛军试图突袭一处军营。The president was absolutely right in ordering the bombing raid.总统下令发动空袭是绝对合乎道义的。...
...the lurid, crimson glow of the blast furnaces.鼓风炉里耀眼、通红的火光They cleverly hid small lumps of gold in their furnaces.他们狡猾地将小块金子藏在炼丹炉里.Used for corundum bricks, mullite bricks, silicate bricks masonry in blast furnaces, h...
Conducting polyaniline ( PANI ) and poly - O - methylaniline ( POT ) were prepared by chemical oxidation method.用化学氧化法制备导电聚苯胺 ( PANI ) 和聚邻甲苯胺(POT ).Objective : To develop a method for determination of the N - methylanili...