For a long time， Chinese production has been synonymous with corner-cutting and cheap goods. Few Western luxury brands we......

I recently watched my sister perform an act of magic.　　We were sitting in a restaurant， trying to have a conversation， b......

该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......

目的 :探讨导致部分质粒转化和抽提失败的原因。方法 :使用同一批DH5 α细菌制备感受态 ,转化、碱裂解法抽提和鉴定两种质粒 ,经抗......

It is shown that SU(2) QCD admits an dual Abelian-Higgs phase, with a Higgs vacuum of a type-Ⅱ superconductor. This is ......