Variational principles play an important role in the formulation of many problems of mathematical physics.变分原理现在许多数学物理的表述中起着重要作用.Bernardine: You're quite wrong there. It's a special formulation that's just...
The requirements of chemical components, producing technology of negative aluminium foil for electrolyze capacitor are explained.阐述了电解电容器负极用铝箔对化学成分 、 生产工艺技术的要求,生产过程中的质量控制原理及方法.It's just one of those words that'...