A层铝土受沉积环境影响较大，垂向上呈中上部富、下部贫的分带规律。
方法实地考察、结合沉积物粒度分析及历史文献资料考证。
黄河下游的淤积大部分是由粒径大于0.05毫米的粗泥沙造成的。
这一时期河床特性是：河床宽，比降小，流量大，流速小，河流的沉积作用比较强。
山梨醇载体沉积法和冷冻干燥法制备番木鳖碱固体脂质体的研究
民族文化积淀下的审美趣味--从不为装饰的装饰构件斗拱谈起
1·Traditionally, silicon cycling is thought to be mainly controlled by rock weathering, subsequent mineral dissolution, and final aggradation in waters.
传统认为硅的循环主要受岩石风化、矿物溶解和水体沉积的影响。
2·This research can help to reduce the aggradation and control the color pollute in the order transportation of crude oil and diesel oil in the pipeline.
本试验的结论将有助于控制与减少顺序输送中原油在管道中的沉积成膜量，并降低对后续成品油的色度污染。 可应用于长距离输油管道的顺序输送中。
3·Many parameters, such as current density, time on and off, pulse frequence, can be interceded in pulse electrolysis. This offers a powerful means to control quality of layer and aggradation speed.
脉冲电解可以调解电流密度、 电流的通断时间、脉冲频率等多个参数，为控制金属沉积层的质量和沉积速度提供了有力的手段。
4·This paper reviews the forming reasons of extremely low permeability of tight sandstone gas reservoir, including congenital aggradation and acquired diagenesis.
论述了致密砂岩气藏特低渗形成的原因：即先天的沉积因素和后天的成岩作用等。