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......

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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......

Water shortage has threatened sustainable development of agriculture globally as well as in the North China Plain(NCP).I......

对一种澳大利亚低阶煤中,钠、硅和硫在热解过程中的相互作用进行了研究,以便深入了解钠的固硫作用和硫对流化床燃烧和气化中颗粒团......

The objective of this paper is to review the factors influencing the formation of degenerated graph- ite layers on the s......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

在大田条件下连续两年,选用兰考矮早8和豫麦49-198为试验材料,研究不同施硫量和灌水次数对小麦粉质拉伸参数和淀粉糊化特性参数的......

The oxidative desulphurization process of coal with different metamorphism degrees treated by an air-steam mixture has b......

建立了使用电感耦合等离子发射光谱法测定轻烧镁中硼、磷、硫的方法.试验发现,硼的测定,有良好精密度、线性和检出限,回收率极好;......

Novel methanol-tolerant oxygen-reduction catalysts, iridium-sulphur (Ir-S) chalcogenides with differ ent Ir/S atomic rat......