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单词 tenth-value
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tenth-value
tenth-value adj. designating a thickness of material that reduces the intensity of radiation passing through it by a factor of 10.
ΘΚΠ
the world > matter > physics > atomic nucleus > radioactivity > [adjective] > related to reduction of intensity
tenth-value1955
1955 Gloss. Terms Radiol. (B.S.I.) 17 Tenth-value thickness.
1957 Effects Nucl. Weapons (U.S. Defense Atomic Support Agency) viii. 378 For concrete, the tenth-value thickness is..about 48 cm.
extracted from tenthadj.n.
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