英语
西班牙语
radioactivity [美 ˌreɪdioʊækˈtɪvədi, 英 ˌreɪdɪəʊakˈtɪvɪti] 名词 U
- radioactivity
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英语
西班牙语
radioactivity [ˌreɪdiəʊəkˈtɪvəti, 美 -oʊækˈtɪvət̬i] 名词 无复数
- radioactivity
-
英语
西班牙语
radioactivity [ˌreɪ·di·oʊ·æk·ˈtɪv·ə·t̬i] 名词
- radioactivity
-
西班牙语
英语
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单语范例（未经PONS编辑处理）
The first cycle lowers the radioactivity of the mixture, allowing the later extraction cycles to be kept cleaner in terms of degradation products.
en.wikipedia.org But instead they caused fission which generated a large amount of radioactivity in the target.
en.wikipedia.org It was later discovered that the radioactivity levels matched the design, but that the regulations concerning acceptable radioactivity levels had changed.
en.wikipedia.org When radioactivity was first discovered, no one was sure what the cause was.
en.wikipedia.org Equipment assembled included remote-controlled bulldozers and robot-carts that could detect radioactivity and carry hot debris.
en.wikipedia.org