Cofferdam
Everybody's Encyclopedia · 1912 · p. 13
a water-tight inclosure formed by piles driven into the bottom of a river and packed with clay, ete. It is used as a dam while laying bare the bottom of the river.
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1909)
Chamber's Etymological of the English Language (1895)
Dictionary of Science, Literature and Art (1854)
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