这个词是什么意思？
A plant genus in the family PINACEAE, order Pinales, class Pinopsida, division Coniferophyta. They are coniferous evergreen trees with long, flat, spirally arranged needles that grow directly from the branch.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D028224 · MeSH 2026。
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