He retired in 1970, on his fiftieth birthday.他在1970年自己50岁生日时退了休。A golden wedding is the fiftieth anniversary of a marriage.金婚是结婚五十周年纪念日.Dartmouth College just marked the fiftieth anniversary of that summer study.在那个夏季研究上...
转换器 、 换流器之硬体驱动系统.The hard - ware of driving system such as converters, inverters.适应性软体式无线设计出现后,正可解决这些硬体上的障碍.Such hardware - related inflexibility is now being addressed by adaptive, software - based wireless designs.这两款产...
病理学家带有血腥味的工作the gory task of the pathologist在早期, 植物病理学家把任何侵染性病害的因子,都叫做‘virus ’.In the early days, pathologists called any agent of infectious disease'virus'.关于牛恶性卡他热的病理发生,仅能获得一些零星的资料.Only fragmentary informatio...