单词	ionization chamber
释义	ionization chamber noun : a partially evacuated tube provided with electrodes so that its conductivity due to the ionization of the residual gas reveals the presence of ionizing radiation Word History First Known Use 1904, in the meaning defined above Medical Definition ionization chamber noun : a partially evacuated tube provided with electrodes so that its conductivity due to the ionization of the residual gas reveals the presence of ionizing radiation
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