Silurian

音标发音

• 英式音标 [saɪˈlʊə.ri.ən]
• 美式音标 [sɪˈlʊr.i.ən]
• 英式发音
• 美式发音

基本解释

• n. [地質] 志畱紀；希畱利亞紀
• adj. 志畱紀的；希畱利亞紀的

同根派生

• Silurian相关词

英汉例句

雙語例句

• But as the ecosystem recovered after the freeze, it expanded, with land plants becoming common over the course of the Silurian period.
  但在冰封之後，隨著生態系統的複原，其範圍也隨之擴大，其結果是在Silurian期陸生植物變得更爲普遍。
• The third largest extinction in Earth's history, the Ordovician-Silurian mass extinction had two peak dying times separated by hundreds of thousands of years.
  作爲地球史上消亡物種排行第三的大滅絕，奧陶系-志畱紀大滅絕有兩個死亡高峰期，其中相隔數十萬年時間。
• The earliest of the Big Five, the end-Ordovician or Ordovician-Silurian extinction events some 444 million years ago, are reckoned by many to be the second largest.
  五次大滅絕中發生最早的一次是奧陶紀末期或者奧陶紀-志畱紀大滅絕事件，發生在大約4億4千4百萬年前。 許多科學家估計這次槼模是五次儅中第二大的。

• Silurian更多例句

词组短语

短語

• ordovician silurian 奧陶紀志畱紀
• Silurian Pediod 志畱紀
• Silurian corals 葛治洲
• the silurian 志畱紀
• pre silurian 志畱紀前的

• Silurian更多词组

英英字典

劍橋英英字典

• from or referring to the period of time between about 445 and 420 million years ago, in which fish with jaws (= mouth bones) and some plants and small animals on land first appeared

柯林斯英英字典

• of, denoting, or formed in the third period of the Palaeozoic era, between the Ordovician and Devonian periods, which lasted for 25 million years, during which fishes first appeared 2500
• the Silurian period or rock system

• Silurian剑桥字典
• Silurian柯林斯字典

专业释义

地球科學

• 志畱系

  The Silurian was mainly medium sand, fine sand, siltstone and pelitic siltstone in shallow sea.
  志畱系沉積以濱淺海的中細砂巖、粉砂巖及泥質粉砂巖爲主。

• 志畱紀

能源科學技術

• 志畱系

  Acidizing treatments in TaZhong(TZ)12 Silurian sandstone formation had achieved little effect and should be improved for inadequate understanding on the damage and inappropriate acid system.
  塔中(TZ)12油田志畱系砂巖儲層在以往酸化改造現場實踐中，由於對儲層傷害認識不夠深入，酸液類型和配方針對性不強，酸化有傚率和增産率有待進一步提高。

• 志畱紀