Jewellery: cuff bracelets and slave bangles in metallics and bright plastic. Chains with coloured gemstones.珠宝首饰. 金属或亮塑料手镯和脚链,链子上要镶有彩色宝石.From ancient times supernatural powers have been attributed by astrologers to certa...
His doctoral dissertation on differential equations connected itself with existence theorems.他论述微分方程的博士论文涉及到存在理论.He wrote his doctoral thesis on electromagnetism.他写有关电磁的博士论文.He was involved in writing his doctoral disser...