| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | digging fighting hole | Germany | Taught and practiced in military training as a crucial tactical skill | 1 |
| 2 | excavation pit | Germany | Commonly found in construction sites and archaeological digs | 1 |
| 3 | quarrying | Germany | Quarrying technologies emphasize efficiency and automation, with a focus on precision extraction and processing. | 1 |