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单词
nectridea
释义
Nectridea
Nectridea
[
nek′trid·ē·ə
]
(paleontology)
An order of extinct lepospondylous amphibians characterized by vertebrae in which large fan-shaped hemal arches grow directly downward from the middle of each caudal centrum.
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ietf (internet engineering task force) administrative director
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ietf working group
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i/e time
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更新时间:2025/8/1 9:19:21