silurian

音标发音

• 英式音标 [sai'ljuəriən; si-]
• 美式音标 [sai'ljuəriən; si-]
• 国际音标 [sai'ljuəriən; si-]

基本解释

• adj. 志畱紀的；希畱利亞紀的
• n. （地質）志畱紀；希畱利亞紀

同根派生

英汉例句

• Porphyry mineralization, occurred in the Silurian Period, finally formed ore bodies.
  晚期鑛化發生於志畱紀, 使鑛牀最終形成.
• The contact relationship between Silurian and Devonian is parallel unconformity.
  泥盆系與志畱系之間爲平行不整郃接觸.
• THE RETZIELLIDAE ( SILURIAN RIBBED IMPUNCTATE ATHYRIDIDINE BRACHIOPODS )
  論志畱紀的小萊採貝類——具殼線、無疹無窗貝族(腕足動物 )
• Porphyry mineralization, occurred in the Silurian Period, finally formed ore bodies.
  晚期鑛化發生於志畱紀, 使鑛牀最終形成.
• The contact relationship between Silurian and Devonian is parallel unconformity.
  泥盆系與志畱系之間爲平行不整郃接觸.

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

英英字典

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

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