| 单词 | key pile |
| 释义 | > as lemmaskey pile key pile n. ΚΠ 1839 W. Turnbull Let. 31 Dec. in Rep. Secretary of War 21 in U.S. Congress. Serial Set (1841) (26th Congr., 2nd Sess.: Senate Doc. 718) IV A wedge, or key-pile, in the centre of each panel. 2003 M. Puller Deep Excavations (ed. 2) vi. 256 Additional key piles may be needed to stiffen the sheeting during pitching and subsequent driving. < as lemmas |
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