第四纪沉积 meaning in Chinese

quaternary deposit

A study on the yangfan quaternary section , linyi , shanxi
山西临猗杨范第四纪沉积剖面初步研究
The occurrence ofland crack is the results of the asymmetry land subsidence . therefore , application the 3stechnology in studying these problems is a realistic and tough matter for expertise . recently gis as a newly - developed technology for dealing and storing spatialinformation has been wildly used in a various fields , geology field without exception
论文重点研究了arcgis平台下基岩构造模型、第四纪沉积结构模型、地下水含水系统结构模型的三维可视化实现方法,并利用comgis在通用开发环境下嵌入了gis功能;在ao的二次开发研究中,利用activex技术实现了3s数据信息在arcgis环境中的无缝结合。