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单词
protium
释义
pro·ti·um
AHD
[prōʹtē-əm, prōʹshē-]
D.J.
[ˈprəʊtiːəm, ˈprəʊʃiː-]
K.K.
[ˈprotiəm, ˈproʃi-]
n.
(名词)
The most abundant isotope of hydrogen, H
1
, with atomic mass 1.
氘:氢的数量最丰富的一种同位素,H
1
,原子质量为1
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meditated
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更新时间:2026/4/16 15:30:22