根横切面上形成了在紧靠内皮层的两层中皮层细胞有规则整齐排列成两环的特殊结构;
In cross-sectioned root form 2 middle bark layer next Internal bark layer especial structure of regularly array;
根横切面上形成了在紧靠内皮层的两层中皮层细胞有规则整齐排列成两环的特殊结构;
In cross-sectioned root form 2 middle bark layer next Internal bark layer especial structure of regularly array;
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