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- A beta ray. β射线
- Each emission of an alpha or beta ray accompanies the transmutation of an atom; the energy communicated to these rays comes from inside the atom. 每一次a射线或b射线的放射都伴随着原子的蜕变，因为赋予这些射线的能量来自于原子的内部。
- scintillation beta ray spectrometer 闪烁射线谱仪
- Absorbed dose point kernels of beta ray source 放射性核素辐射源的吸收剂量点核函数
- Helical orbit beta ray spectrometer 螺旋形轨道谱仪
- 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 simple plaque marks the spot where the martyr died. 有一块朴素的饰板用以纪念该烈士的殉难处。
- A ray flower or the corolla of a ray flower. 舌状花舌状花或这种花的花冠
- It is necessary to remove plaque by brushing one's teeth. 需刷牙以去除牙斑。
- A plate or plaque, as on an office door, inscribed with a name. 名牌记有名字的牌或匾，如挂在办公室门上
- 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。
- Dosimetry of External Beta Rays for Radiation Protection 射线外照射的辐射防护剂量学
- A simple plaque mark the spot where the martyr die. 有一块朴素的饰板用以纪念该烈士的殉难处。
- 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。
- They unveiled the plaque to open the new school. 他们揭开牌匾为新学校主持揭幕礼。
- 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。
- A small card or plaque, such as a nameplate on a door. 小牌一种小卡片或牌，如门上的姓名牌
