1. Having disk flowers only. Used of a composite flower head. 
   仅有盘心花的，用于菊科花头的
2. similar to Gutierrezia sarothrae but with flower heads having fewer rays and disk flowers. 
   类似于兔草，但其头状花序有花盘和少量的边花。
3. Any of various North American plants of the genera Rudbeckia, Ratibida, and Echinacea in the composite family, having disk flowers on a cone-shaped central receptacle surrounded by colorful ray flowers. 
   锥光菊任一种产于北美的金光菊属和松果菊属混合种植物，在被伞状小花包围的锥状中心花托上开有盘状花朵
4. rotary disk heat exchanger 
   转盘式换热器
5. A disk used on a disk harrow. 
   圆盘耙片；圆盘农具用在圆盘耙上的圆片

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