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单词
Precambrian eon
释义
Precambrian eon
网络
前寒武纪宙;之地质时代统称先寒武
网络释义
1.
前寒武纪宙
在20世纪90年代之前,地质学的分期只有两个宙:显生宙(Phanerozoic Eon)和
前寒武纪宙
(
Precambrian eon
),前寒武纪 …
dddnibelungen.wordpress.com
2.
之地质时代统称先寒武
在古生代以前
之地质时代统称先寒武
(
Precambrian Eon
),紧接古生代之后者为中生代(Mesozoic Era)。古生代之开始为地 …
ap6.pccu.edu.tw
例句
释义:
前寒武纪宙,之地质时代统称先寒武
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更新时间:2026/7/13 11:48:59