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单词 rem
释义
N42862803(rem)Spoken.17Fiction.184Magazine.387Newspaper.166Academic.49

rem

/rem/
noun
(复同单)
a unit of effective absorbed dose of ionizing radiation in human tissue, equivalent to one roentgen of X-rays
雷姆(人体组织吸收的有效电离辐射单位, 等于1伦琴X射线)。
词源
1940s: acronym from roentgen equivalent man.
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