基本解釋[地球科學(xué)]放射性碳年代測定法放射性碳測定年齡英漢例句權(quán)威例句There are many different isotopes of carbon and one that we have probably heard of is in the form of carbon-14, known for radio-carbon dating, but where does this radioactive isotope come from?FORBES: Climate Scientists Deepening Skepticism of DemocracyAlthough there were no machines for detecting them systematically before 1935, cosmic rays have left their footprints in the geological record by creating radioactive elements such as the carbon-14 used in carbon-dating.ECONOMIST: Global warming: In flux Theradioactive carbon dating更多例句詞組短語短語radioactive carbon -dating method 放射碳定年法radioactive carbon dating更多詞組專業(yè)釋義地球科學(xué)放射性碳年代測定法放射性碳測定年齡