面心立方(FCC)及六方最密(HCP)结构金属中的差排结构将有较详细的描述.Dislocation structures in FCC and HCP metals are described in some detail.本文用赝势方法计算了铅的面心立方结构和金刚石结构的晶体总能,讨论了两种结构在高压下的稳定性.Using pseudopotential method, we calculated the crystal energy...
我们现在推导这个不等式的另一种有用形式.We derive now a useful variant of that inequality.因上述不等式不能成立,所以不能采用串行进位同步计数器.Since the above inequality is not satisfied a serial - carry synchronous counter can not be used.问题中,一种表示若干变量相互关系的方程(式)或不等式...
Such material can confine water in an artesian aquifer.这样的介质能把水控制在承压含水层中.Sometime the term artesian is used to denote a confined aquifer.有时候人们也用自流含水层这一术语表示承压含水层.Chemically, elements like ? artesian ( potassium ) and alum...