metaphloem
美 英 [metæf'ləʊem]
英汉解释
例句
The cell fiber changing xylem, are also especial much. and metaphloem are also especial good.
罗布麻的纤维细胞木质化强度也特别高,韧性特别好。
It consists of the PROTOPHLOEM (formed first) and METAPHLOEM.
由原生韧皮部(最早形成的)和后生韧皮部组成。