本文阐述利用电法勘测方法，对某化工厂排出废水及污水，污染邻近河床及漫滩的范围，加以圈定。
Groundwater pollution circle that is polluted by sewage expelling from a chemical plant has been explored with electric method in this paper.
第四部分探讨了土地整理项目设计的基本技术方法，包括系统设计方法、工程勘测方法、工程设计方法等。
The third part researched on the main methods of designs, including systematically designs method, project survey method, project designs method, and so on.
在公路常规勘测设计工作中，切线支距法是一种常用的中桩放样方法，但该方法以路线切线为基线，使用条件受到限制。
On regular highway reconnaissance work the tangent offset method is the most common one on highway route center stake layout but this method is limited because of route tangent as baseline for offset.
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