| 单词 | mortar bed | 
| 释义 | > as lemmasmortar bed   mortar bed  n. a layer of mortar between courses of brickwork or masonry. ΚΠ 1842    J. Gwilt Encycl. Archit.  ii. iii. 517  				The propriety of the mortar beds being as thin as possible. 1993    Collins Compl. DIY Man. 		(new ed.)	 iii. 235/1  				The roof covering is usually turned up the wall to form a ‘skirting’ which is tucked into the mortar bed of the brickwork. < as lemmas  | 
	
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