这个词是什么意思？
The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D017666 · MeSH 2026。
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