Permian period

常見例句

• At the end of the Permian period 225m years ago, between 80 % and 96 % of all living marine species were extinguished.
  2.;25億年前的二疊紀末期，當時80%25到96%25的海洋物種滅絕；
• Any of various large, segmented aquatic arthropods of the order Eurypterida that existed from the Ordovician Period to the Permian Period.
  （古生）板足鱟目的一種巨大的、有節(jié)的，屬于板足鱟目的水生節(jié)肢動物，生存于奧陶紀到二疊紀時期
• At the end of the Permian period the earth's landmasses were configured into one supercontinent, Pangea, and a superocean, Panthalassa.
  二疊紀末期，地球上的陸地合并成一塊超級大洲，叫作盤古大陸，以及一個超級大海，叫作原始大洋。
• Ore deposits which have economical value mainly are depositional type and volcanegenic type produced in the permian period and tertiary period.
  具經(jīng)濟價值的主要為產(chǎn)于二疊紀及第三紀沉積類及火山沉積類礦床。
• The hydrothermal fluid and the spaces of ore-bodies in the deposit are provided by the granite magmas and the Permian period.
  指出印支期白崗質(zhì)花崗巖巖漿提供部分成礦物質(zhì),二疊系地層和花崗巖浸位提供熱源和導(dǎo)礦、容礦空間。
• In the Permian Period, 286 million years ago, the most striking transitions in the evolution of life occurred when mammals evolved from one lineage of reptiles.
  在二疊紀期間,286百萬年前,最醒目的轉(zhuǎn)折在生活的演變發(fā)生了當哺乳動物演變了從爬行動物一后裔。
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