| 单词 | perch-bolt | 
| 释义 | > as lemmasperch-bolt   perch-bolt  n. now historical the bolt or pin on which the perch of a carriage turns. ΘΚΠ society > travel > means of travel > a conveyance > vehicle > cart, carriage, or wagon > parts of cart or carriage > 			[noun]		 > pole joining fore and hind carriage > bolt upon which it turns perch-bolt1789 1789    J. Kemp in  T. Jefferson Papers 		(1958)	 XIV. 471  				To a new..Crane Neck Carriage... A new spare screw'd perch bolt & key. 1879    Cassell's Techn. Educator 		(new ed.)	 IV. 174/2  				The perch-bolt, or centre-point on which the wheels lock round. 1992    S. Holloway Courage High! xiv. 118/1  				This was attached by a perch-bolt to the back end of a normally horse-drawn steamer. < as lemmas | 
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