archaean era

常見例句

雙語例句

• The Archaean era limestone aquifer close to No. 10 coalbed is the direct aquifer of it.
  距離其較近的太灰含水層，是10煤開采的直接充水含水層。
• The wall rocks of gold deposits located in Zhaoyuan gold mineralization area were rooted in metamorphic rocks in Jiaodong rock group in Archaean era and granites in Mesozoic era.
  山東招遠(yuǎn)金礦集中區(qū)金礦床的圍巖為新太古代膠東巖群變質(zhì)巖和中生代花崗巖。
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