准东煤作为优质的动力用煤因其在燃烧过程中沾污污、结渣问题严重,制约了此煤炭资源的有效利用.因而掌握其结渣、沾污机理对准东煤......

The removal of Cr, sulfates and Chemical Oxygen Demand (COD) from industrial tannery wastewater by chemical precipitatio......

Compared with borates,carbonates,nitrates and phosphates,sulfates have been ignored as nonlinear optical (NLO) materials......

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......