放射性

The CL characteristics and the ratio of ~ 232 Th/~ 238 U of zircons reveal that the former is formation age of amphibolite,and the later is its metamorphic age.

锆石CL图像和放射性同位素地球化学特征显示前者为岩浆结晶年龄，后者为构造-热事件年龄。

Methods Metabolic functions were studied by antipyrine autoradiography for the measurement of cerebral blood flow,by 3H-leucine autoradiography for the measurement of cerebral protein synthesis and by regional ATP bioluminescent imaging for the measurement of ATP content.

方法用放射性自显影方法测定L1 KO小鼠和野生型对照组小鼠大脑局部血流量和蛋白质合成率，用生物荧光影像技术测定两组ATP含量，并将两组数据进行比较。

Methods Metabolic functions were studied by [14C] antipyrine autoradiography for the measurement of cerebral blood flow, by 3H-leucine autoradiography for the measurement of cerebral protein synthesis and by regional ATP bioluminescent imaging for the measurement of ATP content.

用放射性自显影方法测定L1 KO小鼠和野生型对照组小鼠大脑局部血流量和蛋白质合成率，用生物荧光影像技术测定两组ATP含量，并将两组数据进行比较。

Consequently, a fossil which an archeologist finds to be billions of years old by radioactive dating may in fact be no more than several thousand years old.

因此，化石中的一个考古学家认为这是一个数十亿岁的放射性测年，而事实上也可能没有超过几千岁。

Based on the natural gamma log curve s of acid tuff and clay rocks of acid volcanic events,the author here queries the arguments that radioactive intensity of sedimentary strata will grow with the increasing argillaceous materials and that the natural gamma value and the empirical equation can be used to calculate contents of argillaceous materials.

根据酸性凝灰岩和酸性火山事件粘土岩的自然伽马测井曲线，对当前流传的"沉积岩层的放射性强度随泥质含量的增加而增高"的概念和用自然伽马值及经验公式求泥质含量提出质凝。

For better understanding of thermo-hydro-mechanical coupling processes of argillite rock in Mont Tern project site during the long-time radioactive waste disposal, coupled fields of temperature pore pressure and stress are studied during the heating and cooling phases with the theory of porous media mechanics.

为了解黏土岩在放射性废料长期贮存中的热－水－力耦合过程，结合Mont Terri核废料贮存地下岩石试验工程中黏土岩各种物理量的各向异性特点，应用多孔介质力学耦合理论研究了该黏土岩在加热和冷却全过程中由于热荷载引起的耦合效应场。

Artificial radioactivity sources are widely applied to petroleum exploration and development and probably in ways of preventing pollution in soil environment.

人工放射源在石油勘探、开采等方面得到广泛应用，放射性核素可通过多种途径污染土壤环境。

The discovery of the artificial radioactivity pulled the prelude of nuclear fission. The Joliot- Curie couple played an important role in the discovery of nuclear fission.

人工放射性的发现拉开了核裂变发现的序幕，约里奥-居里在核裂变发现过程中也起到了重要的作用。

After that, the Joliot- Curie couple drew a lesson and through the experiment they found the artificial radioactivity and achieved the Nobel Prize of chemistry.

此后，约里奥-居里夫妇吸取了教训，经过实验最终发现了人工放射性现象，由此获得诺贝尔化学奖。

After its decommissioning as a mint, the building served a variety of purposes, including as an assay office, a United States Coast Guard storage facility and a fallout shelter.

在它作为造币厂的使命终结后，这幢建筑又被用作了其他用途，比如曾被改造成分析实验室，美国海上警卫队的储物间，甚至成了放射性尘埃躲避处。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。