phloem

常見例句

用作名詞 (n.)

• In vascular plants, the xylem and phloem serve to translocate such substances.
  維管植物的木質(zhì)部和韌皮部主要進(jìn)行對(duì)這類物質(zhì)進(jìn)行運(yùn)輸。
• The secondary phloem consisted of sieve cells and phloem parenchymas.
  根的次生韌皮部則由篩胞和韌皮薄壁細(xì)胞組成。
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