Until today germanium is the present substance on earth with no exception.直至今天锗才毫无异议地成为地球上是纯净的物质.Doped silicon and germanium are technologically the most important types of semiconducting material.添加硅和锗在工艺上是半导体物质中最重要的类型....
He was presented with a scroll commemorating his achievements.他被授予一幅卷轴,以表彰其所做出的成就.As I opened the scroll, a panorama of the Yellow River unfolded.我打开卷轴时, 黄河的景象展现在眼前。I covered the scroll in sealing wax, and affixed a red ...
...the first day of the school holidays.学校放假的第一天I spent much of what I laughingly call 'the holidays' working through 621 pages of typescript...我把我戏称为“假日”的大部分时间都花在那621页的打字稿上了。All his poor kinfolks came to spend...