| 单词 | lock timber |
| 释义 | > as lemmaslock timber lock timber n. (a) timber forming part of a canal lock or intended for this purpose; †(b) Mining timber used to support the roof of a working; cf. lock piece n. 1 (obsolete rare). ΚΠ 1836 App. Jrnl. House of Assembly Upper Canada 1836–7 II. 32/1 Phelps estimates to Mr. Director Keefer, 20,000 feet of lock timber, $800. 1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 152 Lock-timber, an old plan of putting in stull-pieces in Cornwall and Devon. The pieces were called lock-pieces. 1907 R. Bidwell Benson Bidwell iii. 88 In my state of nervousness, it would be dangerous to walk the narrow lock timbers, with the waters roaring below. 2004 T. E. Castaldi Wabash & Erie Canal Notebk. III 83 Later Hutchins Laundry built a dry cleaning plant here and the heavy lock timbers still in place inhibited the building progress. < as lemmas |
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