| 单词 | collateral bundle | 
| 释义 | collateral bundle [kǝ¦lad·ǝ·rǝl `bǝnd·ǝl]  BOTANY A vascular bundle in which the phloem and xylem lie on the same radius, with the phloem located toward the periphery of the stem and the xylem toward the center.  | 
	
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