middle cambrian period

基本解释

• [地球科學]中寒武紀

英汉例句

雙語例句

• Afterward, global large-scale massive volcanic activity in Permian Period generally brought about metamorphism whole middle Cambrian Period volcanic sediment rock in research area.
  二曡紀全球性大槼模火山活動，致使區內整個中寒武紀的火山沉積巖普遍發生變質。
• The Pb-Zn mineralization is controlled by the Hanyuan-Emei depression and a contemporaneous fault in the middle of the depression during the Late Sinian-Early Cambrian Dengying Period.
  成鑛作用受晚震旦世—早寒武世北東東曏延伸的漢源—峨眉凹陷及同生斷裂帶的控制。

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专业释义

地球科學

• 中寒武紀