Heartwood相关论文
Movement of boron from ulexite and colemanite minerals in sapwood and heartwood of Cryptomeria japon
This study evaluated boron diffusion from raw boron minerals ulexite and colemanite with low water solubility in compari......
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......
