常見例句雙語例句Virtual Dating Radiocarbon (Carbon-14) applies to once-living materials that are less than 50,000 years old.虛擬測年放射性碳（碳14）模型應(yīng)用於測量年齡小於50000年的物質(zhì)。biositemap.comFind a good description of the dating process here.) After carbon-14 spread throughout the globe, tiny amounts of the gas were taken up by the slow-growing mosses.在碳-14散佈到全球之後，微量的這種氣躰被緩慢生長的苔蘚吸收。According to the result of environment tritium math-physical model and carbon-14 age dating, think the renew ability of the thermal water in study area is confined and inhomogeneity.根據(jù)環(huán)境氚的數(shù)學(xué)物理模型計算和碳-14測年結(jié)果，關(guān)中盆地?zé)崴筛滦跃哂杏邢扌院头蔷恍蕴攸c。權(quán)威例句The age of the cloth was determined by Carbon-14 dating.FORBES: Ancient Burial Cloth Provides Clues To Bronze Age TradeAlthough 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 TheThere 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 Democracy 返回 carbon-14 dating