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permian period
二叠纪
常用释义
词性释义
二叠纪
例句
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This
was
the
end
of
the
Permian
period
,
and
of the
era
of life called the
Paleozoic
.
这就是二叠纪以及整个古生代的终结。
The end of the
Permian
period
, 252m
years
ago
, was marked by the
biggest
extinction
of
life
known
to
have
happened
on
Earth
.
252百万年前的二叠纪晚期以已知的地球上发生过的最惨痛的生物灭绝事件著称。
Each
sampling
site
spanned the
mass
extinction
252
million
years ago at
the
end
of
the
Permian
period
.
每个采样的选址都经历了二叠纪末期长达两亿五千两百万年的大灭绝时期。
The
Permian
period
,
which
ended
in
the largest
mass
extinction
the
Earth
has
ever known
,
began
about
299
million
years
ago
.
二叠纪开始于2.99亿年前，并以地球上最大规模的物种灭绝而结束。
Dividing
of
Layer
in the
Permian
Period
in Ningwu
Coalfield
of
Shanxi
Province
山西省宁武煤田石炭二叠纪地层的划分
同义词
二叠纪
Dias
dyas