metaphloem
美 英 [metæf'l??em]
英漢解釋
例句
The cell fiber changing xylem, are also especial much. and metaphloem are also especial good.
羅布麻的纖維細胞木質化強度也特別高,韌性特別好。
It consists of the PROTOPHLOEM (formed first) and METAPHLOEM.
由原生韌皮部(最早形成的)和后生韌皮部組成。