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......

The Great Spotted Woodpecker Dendrocopos major (L.), one of the natural predators of Anoplophora glabripennis (Motseh.) ......

A kind of hierarchical zeolite catalyst was synthesized by hydrothermal method.X-ray diffraction (XRD)and nitrogen adsor......

A series of glucose derivatives have been used as chelating reagents to extract metal ions in supercritical carbon dioxi......