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| ordinary freezing; ordinary refrigeration | |||
| ground freezing (zur Bodenstabilisierung); method of freezing (Baugrundverfestigung) | |||
| freeze sinking; freezing method; freezing process; freezing shaft sinking; Koch freezing process | |||
| method of freezing; process of freezing | |||
| Gefrierverfahren: 2 phrases in 2 subjects |
| Metallurgy | 1 |
| Mining | 1 |