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- positron radioactivity 阳电子放射性
- Relating to or caused by radioactivity. 放射产生的关于放射性的或由放射性引起的
- A damaged reactor leaking radioactivity into the atmosphere. 一座损坏的反应堆向大气中泄露出发射性物质
- We have to learn to control radioactivity. 我们必须学会控制放射能。
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- Positron is how it was detected by ? 正电子是如何被检测出来的呢？
- Some rare metals have radioactivity. 某些稀有金属具有放射性。
- Overburden had concealed the radioactivity. 覆盖层屏蔽掉了放射性。
- Endocytosis of LDL and Radioactivity Techniques. 低密度胆固醇之胞饮作用与放射性技术。
- STUDY ON RADIOACTIVITY LEVEL OF XIANGJIANG-RIVER. 湘江的放射性水平研究。
- Cloud chambers are used for studying radioactivity. 云室是用于研究放射活动的。
- Radioactivity is a special quality of radium. 放射性是镭的一种特性。
- To expose to or permeate with radioactivity. 我们必须学会控制放射能。
- A nuclide that exhibits radioactivity. 放射性核素表现出放射性的核素
- The antielectron, or positron, was discovered in 1932. 反电子或正电子,是在1932年被发现。
- To participate in annihilation, as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
- To participate in annihilation,as do an electron and a positron. 湮灭，湮没湮灭，如电子与正电子
- An electron with a negative charge,as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- This creates, as it were, electron and positron shadows. 这样也就有了电子和正电子的阴影。
- The Geiger counter registered a dangerous level of radioactivity. 盖革计数器显示出放射性危险程度。
