请输入您要查询的字词:
单词
palaeontological clock
释义
palaeontological clock
Encyclopedia
理学
古生物学
释
palaeontological clock
古生物钟
保存为化石的生物体具有能反映生物生长节律的骨骼结构。如珊瑚化石表壁上的生长环脊和生长环纹,软体动物和腕足动物化石壳表上的生长纹,叠层石、藻类和某些层孔虫的生长纹层等。
随便看
projective limits
projective limit space
projective line
projective linear group
projective line element
projective line geometry
projectively affine
projectively connected manifold
projectively connected space
projectively deformable surface
projectively extended real numbers
projectively flat metric
projectively flat space
projectively flat structure
projectively independent point
projectively normal curve
projectively trivial ring
projective manifold
projective mapping
projective matrix
projective measure
projective mensuration
projective method
projective metric
projective metric element
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2026/6/22 5:05:26