音标:['pә:miәn] ;
a. 二叠纪的, 二叠纪岩的
n. 二叠纪(岩)
n. from 280 million to 230 million years ago; reptiles
词型变化:名词复数形式 : permians

Permian的用法和样例:

例句

用作形容词(adj.)
  1. Permian bioclastic limestone and bioherm are the most favorable reservoirs.二叠系生屑灰岩和生物礁为最有利的储层。
  2. The clastic rocks in Permian System at the southeast area of Ordos Basin contain tremendous potential in exploration of natural gas.鄂尔多斯盆地东南部二叠系碎屑岩具有巨大的天然气勘探潜力。
用作名词(n.)
  1. Cathaysian Flora extincted totally at the end of Permian.华夏植物群在二叠纪末绝灭。
  2. During the Permian, the continents joined to form a single supercontinent, Pangaea.二叠纪时期,各大陆组合成了一个单一的超级大陆板块盘古大陆。

词汇搭配

  • Permian system二迭系
  • Permian period二迭纪
  • the Permian二叠记
【近义词】

37 研究表明2500万年前流星曾碰撞过地球 DATE=4-18-01 TITLE=SCIENCE REPORT - Meteor Collision With Earth BYLINE=Jill Moss (Start at 59

发表于:2019-01-16 / 阅读(126) / 评论(0) 分类 科技之光

Science and technology 科学技术 Mass extinctions 大灭绝 Small but deadly 陨石很小不过危害却很致命 The biggest extinction in history was probably caused by a space rock that changed the climate 历史上规模最大的一次物种灭绝

发表于:2019-02-06 / 阅读(59) / 评论(0) 分类 经济学人科技系列

Earth has seen five major extinction episodes in its time the Ordovician, Devonian, Permian, Triassic, and Cretaceous, in that order and many smaller ones. 地球已经目睹了5次大的灭绝事件依次在奥陶纪、泥盆纪、二叠纪、三叠纪

发表于:2019-02-17 / 阅读(58) / 评论(0) 分类 万物简史
学英语单词
abuse in the granting of loans
adsorbent modifier
adulatoriously
Alzheimer's cells
amateur theatricals
Anabasis elatior
Antigonus II Gonatas
Aruwimi
athletique
Boea philippensis
canonical marriage
capacitor unit
carbonylh(a)emoglobin
carex siderosticata hce
cast-in situ
celiohystero-oothecectomy
chondria crassicaulis
Condé-sur-Huisne
conventional model
Crown I.
cruciferous vegetable
ctau
cut into pieces
cyclic hardening
delivery chute
drive magnet
economic development strategy of coastal areas
effective circulatory volume
electron path length
embrasured
Epherit
ex all
fibroserous membranes
fire warp
force of sliding friction
foxling
full-motion videos
fussed
gonocephalum kanoi
ground water resource
gutmann scale
Habor
have a thick hide
have in mind
immature creditor nation
interlocking panel
iron(iii) oxide
Jatibarang
joint cost
lobsterback
lunke
maceration
mammary feminism
McVeytown
mineral sludge
miswrite
Mitchell principles
mode of life
monchloroethane
monomer-induced
Morris columns
motor-home
N-CDMA
neurologic medicine
neutral resistance
off-gas holdup pipe
offence against social order
offending ship
parallel plate oil separator
Pedicularis muscoides
peltatifolia
persistent leaf
plumcots
pnigos
points of incidence
potassium filter
processor consistency model
pussiest
radiation length
residual fission products
sanded rail
scrappable
sector hole
selfer gene
smeghead
spring corn sheller
strong phoneme
superheater steam circuit
syndesmosis
t-chromosome(kattermann 1939)
tabanuss
tetraiodophthalein sodium
thin-film interferences
thrust build up
tractus corticothalamici
trait theory of leadership
turing number
unproselyting
vermicelloni
Vermontite
went at it
white gale warning