采取点、线、面相结合， 岩石地层学、 生物地层学和同位素年代学相结合的工作方法，研究了这套地层的层序、划分和对比问题；
The succession, division and correlation of these strata are studied with lithostratigraphy, biostratigraphy and isotopic geochronology methods and by the combination of of point, line and area.
现以第四纪地质研究为基础、以桩基工程评价需要为目的，改进了工作方法，获得较好的工程效果。
Based on Quatarnary geology research and engineering evaluation for pile foundations, we have improved the method of Unit dividing and achieved considerable engineering effects.
该论文对三方面水质问题进行了系统的分析、研究，为解决目前建筑给水系统水质问题提供了工作方法和参考。
The dissertation try to provide some new idea to solve the building water quality pollution by analyse and research from above three aspect.
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