high specific activity
... high sensitivity gamma monitor 高活络度射线监测器 high specific activity 高比放射性 high speed centrifuge 超离心计心情 ...
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高比心放射性 high specific activity
·2,447,543篇论文数据，部分数据来源于NoteExpress
矿石样品放射性镭含量比岩石样品高19倍，为井下氡气的主要来源；
The content of radioactive radium in mineral was 19 times higer than that in rock and served as a chief source of radon.
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