| 单词 | floating zone refining | 
| 释义 | floating zone refining [¦flōd·iŋ `zōn ri´fīn·iŋ]  METALLURGY A variation of the zone-refining technique in which the molten zone is held in place by its own surface tension between two collinear rods; since no container is needed, contamination of the pure metal is avoided.  | 
	
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