常見例句The primary meristem consisted of calyptrogen, primordial epidermis, periblem and plerome, while the primary structure consisted of epidermid, cortex and central cylinder.Primary xylem is diarch. 原分生組織來源于胚根,由3群原始細(xì)胞組成,具有典型分生組織的細(xì)胞學(xué)特征;The results showed that the primary xylem of the root is diarch, triarch and tetrarchy; 結(jié)果表明:根的初生木質(zhì)部為二原型、三原型和四原型; 返回 diarch