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......

采用先烧结后球磨的方法制备SnCo1-xYx/C (x=0,0.03,0.1,0.3,0.5)纳米晶负极材料,考察了Y添加量对材料结构和电化学性能的影响.结......

Fe-Cu thin films of 0.2μm in thickness with different Cu contents were prepared byusing r.f. magnetron sputtering onto ......