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单词
four-pi counter
释义
four-pi counter
four-pi counter
[
¦fȯr ′pī ‚kau̇n·tər
]
(engineering)
An instrument which measures the radiation that a radioactive material emits in all directions.
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siagonantritis
siagonodon
siagonodon humilis
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si a jure discedas vagus eris
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更新时间:2025/11/15 10:46:59