这个词是什么意思？
A large subphylum of mostly marine ARTHROPODS containing over 42,000 species. They include familiar arthropods such as lobsters (NEPHROPIDAE), crabs (BRACHYURA), shrimp (PENAEIDAE), and barnacles (THORACICA).
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D003445 · MeSH 2026。
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