 |
| |||
| boring; probing; prospecting by borings or trial pits; sounding; test boring | |||
| observation; ozone observation; ozone sounding | |||
| probings | |||
| sondering: 15 phrases in 6 subjects |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 1 |
| Life sciences | 7 |
| Radio | 4 |
| Transport | 1 |
|
| |||
| boring; probing; prospecting by borings or trial pits; sounding; test boring | |||
| observation; ozone observation; ozone sounding | |||
| probings | |||
| sondering: 15 phrases in 6 subjects |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 1 |
| Life sciences | 7 |
| Radio | 4 |
| Transport | 1 |