| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | compressed gas | Europe | Compressed gas is commonly used for welding and industrial applications. | 1 |
| 2 | compressed gas | Europe | Commonly used for powering tools and machinery | 1 |
| 3 | compressed gas | Europe | Used in industrial applications, welding, and medical purposes. | 1 |