• Vein One of the vascular bundles in a leaf. The pattern in which the veins are arranged in a leaf is called the VENATION.

    叶脉叶片中的管束结构。叶片,所有叶脉排列方式脉络

    youdao

  • Vein One of the vascular bundles in a leaf. The pattern in which the veins are arranged in a leaf is called the VENATION.

    叶脉叶片中的管束结构。叶片,所有叶脉排列方式脉络

    youdao

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