常見例句用作名詞 (n.)Lignified tissues include SCLERENCHYMA and XYLEM.木質(zhì)素組織包括厚壁組織和木質(zhì)部。The xylem of ferns only contains tracheids.蕨類植物的木質(zhì)部衹含有琯胞。 返回 xylem