20世纪30年代西部的产出有所减少。There was a slackening of western output during the 1930s.宾夕法尼亚西部的电话区号是412。The area code for western Pennsyl-vania is 412.他一向热爱西部的迷人风光。He had always been in love with the enchanted landscape of the West...
硝胺醚在无烟火药成份中有两种作用.The nicramine ethers perform two functions in the smokeless powder composition.结果表明,聚乙二醇缩水甘油醚对丝胶蛋白具有明显的交联作用.The result showed that polyethylene glycol diglycidyl ether cross linked sericin obviously.在最佳条...
这是根据虞莱弥·朋撒姆关于高利贷的理论推演出来的.That's a deduction from Jeremy Bentham's theory of interest.数学被看作是这样的抽象推演的汇集.Mathematics is regarded as a collection of such abstract developments.从公设的基础上严谨地推演几何学.Geometry is developed ...