radiolarian chert

基本解釋

• [地球科學(xué)]放射蟲燧石

英漢例句

雙語例句

• There exists abundant Radiolaria in the chert, and the radiolarian association suggests that the chert was formed in the last period of Late Jurassic.
  矽質(zhì)巖中含有大量放射蟲，放射蟲組郃顯示矽質(zhì)巖的沉積時(shí)代爲(wèi)晚侏羅世晚期。

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詞組短語

短語

• radiolarian bedded chert 放射蟲矽質(zhì)巖

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專業(yè)釋義

地球科學(xué)

• 放射蟲燧石