“free-air ionization chamber”的概念、定义、翻译、参考文献-科学参考

单词	free-air ionization chamber
释义	free-air ionization chamber [¦frē ¦er ´i·ǝ·nǝ`zā·shǝn ´chām·bǝr] ^NUCLEONICS An ionization chamber in which the ionizing radiation is limited by a diaphragm, so that ionization is detected in a region of accurately known volume, away from the electrodes and other internal parts of the equipment.
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