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- Among them: making use of reflecting type infrared ray sensor, photo-electricity dynatron and Hall sensor to find the black line, the barriers, find the light and check the rotate speed. 并以此为基本框架，结合自动控制原理对玩具车转速进行闭环反馈，使小车运行稳定；
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- 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
- 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。
- 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。
- He focused the sun's ray on a piece of paper with a burning-glass. 他用一面凸透镜把阳光在纸上聚成焦点。
- radio-active ray sensor 放射线传感器
- gamma ray sensor 伽马射线传感器
- Ray took a gulp of coffee and rushed out of the room. 雷喝了一大口咖啡,接著便冲出了房间。
- He plugged the sensor into a outlet. 他把传感器插进电源插座。
- infrared ray sensor 红外线传感器
- The ray also bends when it leaves the glass. 光线离开镜头时的情况也是如此。
- He perfected a flux-gate sensor in 1941. 他在1941年制成了一台磁通脉冲传感器。
- Old Technology: Based on PIR motion sensor. 传统技术：基于PIR运动传感器。
- My eyes are blind by the direct ray of light. 在光线的直射下，我看不清楚东西。
- The torques are recorded with a torque sensor. 采用扭矩传感器记录扭矩。
- An energetic ray of hope shone in Fergusson's eyes. 费尔逊的眼睛里闪烁着充满希望的光芒。
