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单词 roentgen per hour at one meter
释义 roentgen per hour at one meter
[¦rent·gǝn pǝr ´au̇r at ´wǝn `mēd·ǝr]
NUCLEONICS
A unit of γ-ray source strength, corresponding to a dose rate of 1 roentgen per hour at a distance of 1 meter in air. Symbolized RHM.
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