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deng zhi xian cha ru hui tu yi yan zhi
Author(s): 
Pages: 59-60
Year: Issue:  4
Journal: Hydrogeology and Engineering Geology

Keyword:  等值线图绘图仪水文地质地下水矿化度工程地质野外测量高程控制点降水量水利插入;
Abstract: <正> 在水文地质、工程地质、水利和气象等系统中编制有关地下水矿化度等值线图、水位等值线图、水量、水压等值线图以及气压、气温和降水量等值线图等,常需要做等值线的插入工作。特别在野外测量时,如能立即在两个不同高程控制点间,按比例尺要求,合理地插入一定数量的等值线,从而即可在现场看出图上画的等值线是否反映了野外的实际情
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