音標發(fā)音英式音標 [?fl??.em]美式音標 [?flo?.em]英式發(fā)音 美式發(fā)音 基本解釋n.靭皮部；篩部同根派生 phloem相關詞英漢例句用作名詞 (n.)In vascular plants, the xylem and phloem serve to translocate such substances.維琯植物的木質(zhì)部和靭皮部主要進行對這類物質(zhì)進行運輸。The secondary phloem consisted of sieve cells and phloem parenchymas.根的次生靭皮部則由篩胞和靭皮薄壁細胞組成。phloem更多例句英英字典劍橋英英字典 the type of plant tissue that transports food from the leaves to the other parts of the plantphloem劍橋字典phloem柯林斯字典