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单词 key bit
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> as lemmas

key bit
key bit n. the part of a key that engages with the lever of a lock; = bit n.1 7.
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society > occupation and work > equipment > building and constructing equipment > fastenings > [noun] > key > parts of key > bit
bit1644
key bit1699
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1699 A. Boyer Royal Dict. Key-bit, paneton.
1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) III. 142 By turning the handle, the key-bit..is brought into contact with the works of the lock, so as to shoot and withdraw the bolt.
2007 G. W. Pulford High-security Mech. Locks v. 378 In mortice locks designed to be operated from either side of the door, the center step of the key bit operates the bolt.
extracted from keyn.1adj.
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