Objective:To investigate the effects of 6 strains of lactobacilli and their main culture metabolites on the morphogenesi......

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......

Behaviours of urediospore germtube in Melampsora larici-populina on the leaf surface of Populus purdomii were studied by......