您要查找的是不是：
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- Radium and uranium are radioactive elements. 镭和铀是放射性元素。
- Radioactive ray is material thing. 放射线是实际的物质。
- A ray flower or the corolla of a ray flower. 舌状花舌状花或这种花的花冠
- The gun can fire invisible rays. 这枪能发出看不见的射线。
- My eyes were blinded by the direct rays of light. 在光线的直射下，我看不清楚东西。
- All eyes directed their rays on the hero. 所有人的目光都汇集到那位英雄身上。
- The researches are concerned with alpha rays. 这些研究是关于阿尔法射线的。
- radium rays 镭射线
- He was the discoverer of the element radium. 他是镭元素的发现者。
- A ray of sunlight pierced the clouds. 一缕阳光穿透了云层。
- I was left without a ray of hope. 我连一线希望也没有了。
- Her visit brought a ray of sunshine into the children's lives. 她的来访给孩子们的生活带来了欢乐。
- Let's go to the beach and catch some rays. 让我们到海边享受点阳光
- radium ray 镭射线
- Sight is made possible by rays of light impinging on the retina. 由于光线射到视网膜上,眼睛才看得见。
- Radium is a radioactive element. 镭是个放射性元素。
- At one end of the barrel there was some radium. 枪管的一端装有镭。
- Ray take a gulp of coffee and rushed out of the room. 雷喝了一大口咖啡，接着便冲出了房间。
- Who is the scientist that first discover Radium? 最先发现镭的科学家是谁?
