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......

在孟加拉国吉大港大学林业与环境科学院苗圃内,评价了污泥对大叶相思种子萌发以及幼苗生长的作用.播种前,将污泥与营养匮乏的自然......

采用不同浓度的多效唑、矮壮素、比久对甜高粱种子进行浸种处理,结果表明,3种生长延缓剂中,多效唑对甜高粱幼苗生长的抑制作用最强......

Soil salinization and alkalization frequently co-occur in nature, but little is known about the mixed effects of salt-al......

Chondrus is an economically important red algae widely used for food and biochemical purpose. It early development is cr......