基本解釋adj.[植]向頂?shù)?/li>同根派生 acropetally相關(guān)詞英漢例句Acropetal differentiation of the cambium layer continues as the primary root elongates. 形成層的向頂分化像初生根伸長一樣在繼續(xù)進(jìn)行。In the early December, the first bract primordium was formed in the axil scale at the cone base, then bract initiation had occurred in acropetal direction. 12月初,最初的苞片原基在雌球果原基的鱗片的葉腋處產(chǎn)生,之后其由基部向頂部連續(xù)發(fā)生。Usually, two pairs of the fertile bracts in the middle of the cone subtend six ovules, which initiate in an acropetal manner. 在北京 ,雌球果原基 7月分化。 通常一個球果有 4對苞片 ,中部兩對可育 ,靠球果頂端一對各產(chǎn)生一枚胚珠 ,其下一對各兩枚。In Aconitum inflorescences the oldest flowers were functionally female at the bottom of acropetal racemes, while younger flowers were functionally male at the upper positions. 草烏花序是無限花序, 當(dāng)上部的花處于雄性階段時, 下部的花正好處于雌性階段。Compare acropetal. 比較acropetal。acropetally更多例句