carbon-14 dating

常見例句

Virtual Dating Radiocarbon (Carbon-14) applies to once-living materials that are less than 50,000 years old.
虛擬測(cè)年放射性碳（碳14）模型應(yīng)用于測(cè)量年齡小于50000年的物質(zhì)。
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Find 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散布到全球之后，微量的這種氣體被緩慢生長(zhǎng)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(jì)算和碳-14測(cè)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(diǎn)。

The age of the cloth was determined by Carbon-14 dating.
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Although 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.
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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?
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