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......

Mesoporous silica (MS),3-aminopropyltriethoxysilane(APTES)modified mesoporous silica(AMS),bis(3-trimethoxysilylpropyl)am......

A simple scheme is presented for generating four-photon entangled states with interaction between a three-level atom and......

新疆博格达造山带博格达峰南侧柳树沟组出露大量双峰式火山岩组合。本文对博格达造山带西段石炭纪双峰式火山岩地球化学特征研究结......