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单词
small shelly fossils
释义
small shelly fossils
网络
小壳化石；微小动物化石
网络释义
1.
小壳化石
【摘要】：正
小壳化石
(
Small Shelly Fossils
)是指地质历史中出现在软躯体动物群之后、三叶虫动物群以前的、个体微小(以毫米 …
cpfd.cnki.com.cn
2.
微小动物化石
...层下面，是一层灰色的沙岩，含有被称为‘小壳化石’的
微小动物化石
（
small shelly fossils
）。有些类似微小的贝类。这层沙岩…
blog.sina.com.cn
例句
释义:
小壳化石,微小动物化石
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更新时间：2026/4/5 16:22:06