- ホーム
- > 洋書
- > ドイツ書
- > Mathematics, Sciences & Technology
- > Sciences
- > sciences generally
Full Description
This book focuses on natural and manmade structures which are used for drawing groundwater to the surface. Groundwater extraction structures include open dug wells (small-diameter open wells and large-diameter irrigation wells), tube wells, filter point wells, bore wells, surangams, and dug-cum-bore wells.



