Metamorphic basement of the jiangnan Proterozoic Paleo - island arc mainly consists of low - grade metamorphic volcanic sedimentary rocks.
江南元古宙古島弧的基底變質(zhì)巖主要由淺變質(zhì)的島弧火山—沉積巖系組成.
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In ESR dating, the age is given by the ratio of paleo - dose to annual dose.
在ESR測年研究中,被測樣品的年代是通過樣品的古劑量與樣品所接受的年劑量的比值得到的.
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Due to obvious paleo - karst erosion flutes and platform co - exit at the top of the weathering crust.
由于古巖溶作用明顯,風化殼頂面具有顯著的巖溶地貌特征,形成了獨特的溝臺并存格局.
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The Cambrian and Ordovician are important exploration target strata in Leshan - Longnvsi paleo - uplift area.
寒武系和奧陶系是四川盆地樂山 — 龍女寺古隆起區(qū)的重要勘探目的層系.
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The low-carbohydrate food movement gave birth to such diets as the Atkins, Paleo and Keto, which advised swapping foods like bread, pasta and potatoes for vegetables, fish and meat.
2019年6月六級真題（第一套）閱讀 Section A