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......

9SiCr钢制零件经真空热处理和电炉热处理后,分别对其表面质量、变形量、金相组织、冲击韧度、断口形貌和耐磨性能进行了测定.结果......

A γ-Al2O3 particles reinforced Al-Si alloy matrix composite was fabricated by adding NH4Al(SO4)2 to molten aluminum all......

Carbon spheres with size of 50-300 nm were synthesized via a solvent-thermal reaction with calcium carbide and chlorofor......