基本解釋n.[植]真中柱( 存在於大多數(shù)裸子植物和被子植物的莖內(nèi))同根派生 eustele相關(guān)詞英漢例句The vascular bundles of the stem are arranged in a ring within a single endodermis and pericycle, giving a eustele. 莖內(nèi)的維琯束在皮層和中柱鞘內(nèi)排列成環(huán)狀，形成真中柱。eustele更多例句