This study evaluated boron diffusion from raw boron minerals ulexite and colemanite with low water solubility in compari......

为了研究醋酸水溶液处理给杉树材重量带来的变化,使用醋酸水溶液对杉树材进行了处理.结果发现处理后杉树材重量的减小量大约等于抽......

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......

We evaluated heartwood, sapwood and bark content in teak trees.A total of 27 sample plots were laid out in teak plantati......