• There are 2-3 layers of long-column-shaped palisade tissue under the upper epidermis, and there are a great number of mechanical tissues which made up of vascular bundle sheath .

    表皮下方2-3长柱形栅栏组织主脉大侧脉外方具有大量机械组织组成束帽或束鞘。

    youdao

  • There are 2-3 layers of long-column-shaped palisade tissue under the upper epidermis, and there are a great number of mechanical tissues which made up of vascular bundle sheath .

    表皮下方2-3长柱形栅栏组织主脉大侧脉外方具有大量机械组织组成束帽或束鞘。

    youdao

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