| 单词 | track-laying | 
| 释义 | > as lemmastrack-laying   track-laying adj. 		 (a) that lays railway track;		 (b) (of a vehicle) having endless tracks (sense  6e   above). ΚΠ 1920    Sci. Amer. 2 Oct. 335 		(caption)	  				Typical tractors of the wheeled and track-laying species now employed for agricultural and other purposes. 1957    Times Lit. Suppl. 27 Dec. 781/3  				They resemble (as it says on driving licences) a ‘track-laying vehicle steered by its tracks’. track-laying   track-laying n. 		 (a) the laying of railway track;		 (b) in film editing, the putting together of the sound track that is to accompany a picture. ΚΠ 1857    R. G. Payne Rep. Condition Railroads Tennessee 7  				The track-laying is progressng from the southern end of the road. a1884    E. H. Knight Pract. Dict. Mech. Suppl. 900/2  				Track-laying machine. 1900    Engin. Mag. 19 797/2  				Tracklaying by Machinery on the Canadian Pacific Ry. 1957    A. R. Manvell  & J. Huntley Technique Film Music iv. 178  				The four technical branches of film production, i.e., design..photography..sound..and editing (including assembly cutting, track-laying, laboratory liaison, and post-production processes). 1962    A. Nisbett Technique Sound Studio xii. 206  				Track-laying systems, where a whole series of tracks can be recorded individually on a single broad tape and then scanned together. < as lemmas  | 
	
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