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....
空气中弥漫着刺鼻呛人的硫磺气味.The pungent, choking smell of sulphur filled the air.钠和硫磺腐蚀性很强。Sodium and sulphur are highly corrosive.他燃烧了一块预先仔细称过分量的硫磺.He burned a piece of sulphur which he had carefully weighed beforehand....
In humans, the pars intermedia is a rudimentary region.人的脑垂体中间部是不发达的.James Gregory gave in in his " Geometriae Pars Universalis " a method of rectifying curves.JamesGregory在他的《几何的通用部分 》 中给出了计算曲线长度的方法.The dangerous type c...
这种疾病传播的条件已经成熟。The conditions are ripe for the spread of disease.该疾病一下子就使4,000万只兔子丧命。The disease wiped out 40 million rabbits at a stroke.抑郁症会降低人体对疾病的抵抗力。Depression lowers the human ability to cope with disease....