| 单词 | chain-towing | 
| 释义 | > as lemmaschain-towing   chain-towing  n. a system of towing vessels in rivers, etc., by means of a chain or cable lying along the bed of the river which is wound over a drum on board the vessel. ΚΠ 1874    E. H. Knight Amer. Mech. Dict. I. 521/2  				The chain-towing system was first tried in France in 1732. < as lemmas  | 
	
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