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单词 bradawl
释义 bradawl|ˈbrædɔːl|
[app. f. brad n. + awl, denoting an awl for making holes to insert brads; though the ON. bragð-alr lit. ‘twirling awl’, a fire-drill, suggests a different derivation.]
A kind of small boring tool, a sprig-bit.
1823P. Nicholson Pract. Build. 238 Brad-awl..is the smallest tool used for boring.1881Mechanic §262 The bradawl varies in..diameter of the steel shaft from 1/16 in. to 1/8 in. or 3/16 in.
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更新时间:2024/9/20 6:12:11