基本解释n.周皮同根派生 periderm相关词英汉例句用作名词 (n.)In damaged stems and roots, and in those undergoing secondary growth, it is replaced by a secondary layer, the periderm.已损伤的茎和根，以及进行次生生长的根茎中，表皮被次生层即周皮代替。periderm更多例句