| 单词 | keyhole guard |
| 释义 | > as lemmaskeyhole guard keyhole guard n. a metal plate which covers a keyhole, or a bolt which is inserted into it, so as to block the view through the hole, prevent tampering with the lock, stop draughts, etc. ΚΠ 1859 Jrnl. Franklin Inst. Oct. 229 Preventing the displacement of the tumbler in the direction of unlocking by means of pins, in combination with the sliding bottom key-hole guard and the tenons. 1889 Sci. Amer. 61 195 Bennett's improved key-hole guard..preventing any view through the keyhole. 1994 Christian Sci. Monitor (Boston) (Nexis) 19 May 10 Horse stalls have polished brass keyhole guards and brick floors in a herringbone pattern. < as lemmas |
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