This company provides a full range of consulting services in the field of bioengineering for the fields of aquatic biology , ecology , and water quality ; hydrology , fluvial geomorphology , soil science , and wetland management 该公司是一个生物工程领域的全方位咨询公司，业务范围涉及到水生生物学、生态学、水质量、水文测量、水文学、河流地貌学、土壤科学和湿地管理等。
By looking into the cores , analyzing of granularity and ichno - fossils , the paper has ascertained the basin as a normal fluvial delta deposital system , which amends the former view that believed the basin should be a fan - delta system 通过本区大量的岩心观察、粒度分析、遗迹化石分析，修改了前人认定的其为扇三角洲沉积体系的观点，将其确定为正常的河流三角洲体系。
Typical oil - water relative permeability curve , typical capillary pressure curve , typical pvt correlation of fluvial and delta facies in oil field of china and average value of several reservoir parameter are studied statistically in this paper 统计研究了中国油田河流相与三角洲相的典型油水相对渗透率曲线、典型毛管压力曲线、典型pvt关系，以及多种储层参数的平均值。
In the early sinian , clastic sediments formed by fluvial and continental glacial actions were developed , while in the late sinian , great thickness of marine carbonate rocks formed by two transgression - regression cycles were developed 早震旦世发育由河流作用与陆地冰川作用形成的陆源碎屑沉积；晚震旦世则发育由两次台地盆地台地的海进海退旋回形成的巨厚海相碳酸盐沉积。
The depositional environment of the upper paleozoic in the ordos evoluted from the epicontinental sea to the fluvial - delta . the change of the depositional environment and eustacy controlled the main depositional systems in the research area 上古生界沉积环境演化过程总的是由陆表浅海逐渐变为陆相的河流?三角洲，海平面升降和海水进退控制了区内主要的沉积体系和沉积相类型。
The sedimentary facies of sihetun area may be divided into alluvial - fluvial , shore - lacustrine , semi - deep and deep lacustrine ; while those in yixian area can be classified into alluvial - fluvial , fluvial , shore - lacuatrine and lacustrine facies 四合屯地区的沉积相可以划分为冲积扇河流相、滨湖相、半深深湖相；义县地区沉积相可以划分为冲积扇河流相、河流相、滨浅湖与湖相。
