次生韧皮部

蛋白质细胞：1.在裸子植物的次生韧皮部薄壁组织和韧皮射线中发现的1种垂直伸长的细胞，通常与筛胞相结合。

peripheral lymphoid organ,secondary lymphoid organ

secondary bronchi

secondary cardiomyopathy

secondary injury

secondary gill lamellae

secondary metabolite

secondary fermentation

secondary wavelet