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单词
Romer's gap
释义
Romer's gap
网络
柔默空缺;柔默缺环
网络释义
1.
柔默空缺
柔默空缺
(
Romer's Gap
)是指约於3亿6千万至3亿4千万年前一段缺乏化石纪录的时期。这段空缺是以古生物学家阿尔弗雷德· …
zh.wikipedia.org
2.
柔默缺环
【摘要】:正陆生动物的进化与"
柔默缺环
"(
Romer's Gap
)水生生物第一次登上陆地是进化历史中的一大创举。脊椎动物是成功 …
www.cnki.com.cn
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demand file
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demand flow analgesia apparatus
demand for
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demand for control
demand for credit
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demand for explanation
demand for factors of production
demand for forecast
demand for forecasting
demand for forecasting method
demand for funds
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更新时间:2026/7/18 17:29:17