大家都搜:
隐花植物木质部;向心木质部
1、centrifugal vs centripetal───离心与向心
2、centripetal───adj.向心的;利用向心力的
3、centripetal force───[力]向心力;n.向心力
1、Centripetal xylem differentiates from the outside toward the center, and a centripetal inflorescence (e. g. the capitulum ) is one in which the outer flowers open before those in the center.