1.【植】周皮
1.the outer layer of plant tissue in woody roots and stems
1.However treatment with GA by itself promoted callus formation and inhibited new periderm, cambium and vascular tissues differentiation.
单独用GA可促进愈伤组织的形成，抑制新的周皮、形成层和维管组织的分化。
2.The epidermis has been replaced by periderm on the surface of stem.
林奈木茎的表面，表皮层已被周皮所代替。
3.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。
4.Results and Conclusion The secondary structure of the stem of Uvaria microcarpa consisted of the periderm, cortex and vascular cylinder.
结果与结论紫玉盘的茎次生构造由周皮、皮层及维管组织组成；
5.The biennial rhizome of D. zingiberensis is composed of three parts: the periderm, the ground tissue and the vascular bundle.
盾叶薯蓣的二年生根状茎主要由三部分组成：周皮、基本组织和散生在基本组织中的维管束。
6.There are two pens being and a periderm on the desk.
桌上有两支钢笔和一块橡皮。听听过去完成时被动语态。
7.Effects of Exogenous IAA and GA on Regeneration of Vascular Tissues and Periderm in Broussonetia papyrifera Stems after Removal of the Xylem
构树去木质部后外源IAA和GA对维管组织和周皮再生的影响
8.Adventitious roots and rhizome have much periderm, the suppository level is high;
不定根和地下茎的周皮发达，栓质化程度高；
9.the stem of annual plants closes to apical bud, they have obvious secondary xylem and secondary phloem, the structure of periderm is intact;
一年生实生苗茎近顶芽处，次生木质部、次生韧皮部明显，周皮结构完整；茎次生木质部为散孔材；
10.Development of periderm and Lenticel structure
周皮发育与皮孔结构