Lenard ray

例句：

1. 1.Lenard ray is a type of radiation that can be used for medical purposes.
   伦纳德射线是一种可用于医疗目的的辐射类型。
2. 2. The Lenard ray was used to treat cancer patients at the hospital.
   医院使用伦纳德射线治疗癌症患者。
3. 3.Lenard ray has been shown to have anti-cancer properties.
   研究表明伦纳德射线具有抗癌性质。