radioactive carbon
英 [ˌreɪdiəʊˈæktɪv ˈkɑːbən]
美 [ˌreɪdioʊˈæktɪv ˈkɑːrbən]
网络 放射性碳
双语例句
- Radioactive decay with emission of carbon nuclei
碳核发射放射性衰变 - The technique is so sensitive that it can detect a single radioactive carbon atom hiding among a quadrillion ( one million billion) ordinary ones.
这项技术非常敏感，甚至能够在十的十五次方（一千万亿）个普通碳原子中找到一个放射性碳原子。 - A radioactive isotope of carbon.
碳的一种放射性同位素。 - Simulation of the direct radioactive effects of black carbon aerosol in China
中国地区黑碳气溶胶直接辐射效应的数值模拟研究 - A living organism would take in the radioactive carbon and convert it to organic material.
有生命的有机体会吸收具有放射的碳，并把它转化为有机物质。 - A radioactive transuranic element synthesized by bombarding curium with carbon ions; 7 isotopes are known.
一种放射性超铀元素，用碳离子轰击锔而合成，已知有种同位素。 - When the organism dies, no new radioactive carbon is assimilated.
机体死后，不能再吸取新的放射性碳。 - Food grains, scraps of cloth, bits of wood and so on can thus be dated by finding out how much radioactive carbon is left in them: the less there is, the older they are.
食用的谷物、衣物的脱屑、少量木屑等等都可以通过计算放射性碳含量而得知他们距今有多久：含量越少，年代越久远。 - This would involve slipping a few radioactive carbon atoms into molecules of the drugs in question.
这涉及到将很多放射性碳原子放入药物分子中的问题。 - Using radioactive carbon ( c~ ( 14)) to study the physiological action of gibberellin upon the translocation and distribution of photosynthetic products in paddy rice
应用放射性碳（C~（14））研究赤霉素（920）对水稻光合产物运转与分配的生理效应