Poetsch process
noun
ˈpech-
: a method of excavating in which soft water-bearing formations are first artificially frozen and then mined while still solid
Word History
Etymology
after F. H. Poetsch, 19th century German mining engineer
| 单词 | Poetsch process |
| 释义 | Poetsch processnounˈpech- : a method of excavating in which soft water-bearing formations are first artificially frozen and then mined while still solid Word HistoryEtymology after F. H. Poetsch, 19th century German mining engineer |
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