null method
| permeameter
| null method | |
| meas.inst. | nulmethode |
| permeameter | |
| earth.sc. | permeabiliteitsmeter |
| el. | permeameter |
| el. meas.inst. | permeameter met lage μ volgens Fahy |
| |||
| nulmethode | |||
|
null method : 5 phrases in 3 subjects |
| Earth sciences | 1 |
| Measuring instruments | 2 |
| Technology | 2 |