这个词是什么意思？
A phylum of ARCHAEA comprising at least seven classes: Methanobacteria, Methanococci, Halobacteria (extreme halophiles), Archaeoglobi (sulfate-reducing species), Methanopyri, and the thermophiles: Thermoplasmata, and Thermococci.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D019605 · MeSH 2026。
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