subsurface contour map
| of the
| key bed
| subsurface contour map | |
| geophys. | Tiefenlinienkarte; Isobathenkarte |
| of the | |
| gen. | vom; des |
| key bed | |
| gen. | Klaviaturauflage |
| mining. | Leitschicht; Leithorizont |
| |||
| Tiefenlinienkarte f; Isobathenkarte f | |||
| Tiefenkurvenkarte f | |||
|
subsurface contour map : 1 phrase in 1 subject |
| Geology | 1 |