| 单词 | roll-tube technique | 
| 释义 | roll-tube technique [`rōl ´tüb tek´nēk]  MICROBIOLOGY A pure-culture technique, employed chiefly in tissue culture, in which, during incubation, the test tubes are held in a wheellike instrument at an angle of about 15° from the horizontal and the wheel is rotated vertically about once every 2 minutes.  | 
	
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