英语词汇“ray tracheid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	ray tracheid
释义	ray tracheid noun Etymology: ray (II) : any of various chiefly marginal tracheids in the vascular rays of some gymnosperms that have bordered pits and lack living contents but resemble typical ray cells in position and shape
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