 |
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| sub-surface storage facility; underground storage installation | |||
| underground reservoir; underground tank | |||
| earth tank; earth reservoir; ground tank (water supply) | |||
| aquifer | |||
| |||
| underground storage reservoirs (urban hydrology); underground storage vaults (urban hydrology) | |||
| réservoir souterrain: 7 phrases in 2 subjects |
| Construction | 4 |
| Life sciences | 3 |