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单词
protium
释义
protium
n. the ordinary isotope of hydrogen as distinct from heavy hydrogen (cf. DEUTERIUM, TRITIUM).
Etymology
: mod.L f. PROTO- + -IUM
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jilt
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muco-
mucopolysaccharide
mucosa
mucous
mucro
mucus
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muddle
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mudflap
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更新时间:2026/2/2 2:48:11