她经常把装有放射性同位素的试管放在口袋里，对试管里发出的漂亮的蓝绿光赞不绝口。
She had often carried test tubes containing radioactive isotopes in her pocket, remarking on the pretty blue-green light they gave off.
然而，大约在同一时间，科学家们意识到彗星可能含有衰变的放射性同位素，这些同位素可能使彗星内部的温度升高到导致内部进化的温度。
About the same time, though, scientists realized comets might contain decaying radioactive isotopes that could have warmed cometary interiors to temperatures that caused the interiors to evolve.
表示普通热源。可指定放射性同位素或燃烧热源。
Represents a general heat source. Radioisotope or combustion heat source can be specified.
在生物化学中，放射性同位素主要有两方面的应用。
There are two main types of USES of radioactive isotopes in biochemistry.
一旦反应堆关闭，它仍热存在有来自其他放射性同位素踪迹的衰变热。
Once the reactor has shut down, there remains "decay heat" from traces of other radioactive isotopes.
放射性同位素示踪法测吸水剖面工艺在油田已应用很久了。
Radioisotopic tracer technology measuring water entry profile has been used in oil fields for a long time.
放射性同位素法检测肺癌细胞蛋白激酶C（PKC）活性。
Protein kinase C(PKC)activity of cell membrane was detected.
这个象炼狱般的地方将一缕致死的放射性同位素喷入大气层。
The inferno spewed a deadly plume of radioactive isotopes into the atmosphere.
我们有一些放射性同位素，这些同位素会自发变成其他的原子核。
You've got some radioactive isotopic that can spontaneously decay into some other nucleus.
目的：研究宫颈癌放射性同位素肾图（肾图）检查的临床意义。
Objective:To study the clinical significance of radioactive nephrogram in cervical cancer patients.
癌症的风险是由遭到辐射时的年龄和在特定组织中聚集的放射性同位素决定的。
Cancer risk is determined by the age at exposure and concentration of radioisotopes in particular tissues.
太阳能电池板将提供电力，而放射性同位素加热器单元能够经受火星的严寒气候。
Solar panels will supply power and radioisotope heater units will help it withstand the extreme cold on Mars.
加速器也用于制造放射性同位素、治疗癌症、生物消毒及放射性碳定年。
Accelerators also used for radioisotope production, cancer therapy, Biological sterilization, and one form of radiocarbon dating.
对于注水开发油田，通常使用放射性同位素测井测量注水井的吸水剖面。
Injectivity profile is commonly determined with radioisotope tracer test in water-flood oilfield.
如图3所示，加酯剂中用放射性同位素硫标记的磺化油部分分散在皮革中。
Figure 3 shows how the sulfated oil portion of this fatliquor, which was labeled with radioactive sulfur, is distributed through leather.
这座城市面临的最大问题就是处理铯—137，这是一种半衰期为30年的放射性同位素。
The city's challenge, chiefly, is to dispose of cesium-137, a radioactive isotope with a half-life of 30 years.
同时它应该具备可靠、稳定的能源供应，最好能够使用放射性同位素热电发生器(RTG)。
There wouldalso be the requirement of a reliable, steady supply of energy, so theuse of radioisotope thermoelectric generators (RTGs) would be preferred.
进口放射性同位素、射线装置和含有放射性物质的物品的，按照国家有关规定办理。
The importation of the radioactive isotope, radiation equipment and other radioactive materials should come up to applicable state regulations.
利用放射性同位素示踪技术研究荔枝果皮对外源钙和蔗糖的吸收及细胞壁构建规律。
Absorption of exogenous calcium and sucrose and their deposit onto the cell walls in litchi pericarp were studied by using radioisotope tracer technique.
放射性同位素技术作为核科学技术的一个重要组成部分，在军事领域具有广泛应用。
The Isotope technology is an important part of nuclear science and technology, and is wildly used in the military.
放射性同位素，是指某种发生放射性衰变的元素中具有相同原子序数但质量不同的核素。
"Radioisotopes" refer to a certain type of elements producing radiation decay that have the same atomic number but different mass of nuclides.
这些物质被称作“放射性同位素”—同一种元素的变种，他们具有异常的中子数量，频繁的衰变和放出辐射。
These materials are known as "radioisotopes" -versions of an element that, because they have an abnormal number of neutrons, frequently decay and release radiation.
本文叙述了放射性同位素源激发能量色散x射线分析中基本参数法的原理、实验装置和计算机程序。
In this paper, the principle, experimental arrangement and computer program of fundamental parameters method in radioisotope source excited energy dispersive X-ray analysis are described.
该文针对放射性同位素测吸水剖面存在的问题，探讨了用流量计直接测试注水井层段吸水量的方法。
It is discussed that a method of testing layered water absorbing capacity of water injector by flowmeter directly based on the problems in testing input profile by radioisotope.
炸弹的副产品之一的放射性同位素锶-90扩散到空中，降落到地面，被奶牛摄取，然后通过牛奶供应传递出去。
The radioactive isotope Strontium-90, one of the by-products of the bombs, spread into the atmosphere, fell onto the land, was ingested by dairy cows and passed into the milk supply.
并且，他们或许要对2号反应堆周边其他放射性同位素的含量，包括对铯、钡、钴、镧的浑浊度，进行重新检测。
And they still may need to retest for other radioactive isotopes that had been found in the seawater around the No. 2 reactor, including troubling quantities of cesium, barium, cobalt and lanthanum.
对放射性同位素衰变的测量，尤其是铀、锶、铷、氩和碳，可允许地质学家更精确地确定岩层的年龄。
The measurement of the decay of radioactive isotopes, especially uranium, strontium, rubidium, argon and carbon, has allowed geologists to more precisely determine the age of rock formations.
对放射性同位素衰变的测量，尤其是铀、锶、铷、氩和碳，可允许地质学家更精确地确定岩层的年龄。
The measurement of the decay of radioactive isotopes, especially uranium, strontium, rubidium, argon and carbon, has allowed geologists to more precisely determine the age of rock formations.
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