symbol for half-life of radioactive isotope

放射性同位的半衰期符号T1/2、t1/2

属类：化学及生命科学-医学词汇-

radio-isotope powered prolonged life equipment

放射性同位素长期供电设备,放射性同位素能源延长寿命设备

属类：化学及生命科学-医学词汇-

radio-isotope powered prolonged life equipment]

放射性同位素长期供电设备,放射性同位素能源延长寿命设备

属类：化学及生命科学-医学词汇-

radioactive isotope power supply

放射性同位素电源，放射性同位素供电

属类：化学及生命科学-医学词汇-

The pigment cobalt blue has a variable composition, roughly that of cobalt oxide plus alumina. A radioactive isotope of cobalt emits penetrating gamma rays that are used in radiation therapy.

钴蓝含有各种不同成分，大致是由氧化钴和氧化铝构成。人工放射性同位素钴-60的γ射线可用作放射性医疗;曾有人建议用钴的另一种放射性同位素来制造钴弹，但从未发展。

属类：化学及生命科学-化学-

Difference in Stable Carbon Isotope Composition and Profile Distribution of Soil Organic Matter between Brown Limestone Soil and Yellow Soil in Karst Areas of Guizhou Province

贵州喀斯特地区棕色石灰土与黄壤有机质剖面分布及稳定碳同位素组成差异

属类：行业术语-中文论文标题-

Study on Pectin-Lignin Complexes from Monolignols by Carbon-13 Isotope Tracer Method

果胶-木素复合体化学结构13C同位素示踪法的研究

属类：行业术语-中文论文标题-

in the pulp of fruits juices-Method using isotope ratio mass spectrometry

果汁果肉中稳定的碳同位素比(C13/C12)的测定 同位素比质谱测定法

属类：行业标准名称-国际标准-C) in the pulp of fruits juices - Method using iso

Fruit and vegetable juices-Determination of stable carbon isotope ratio (C/C)in the pulp of fruits juices-Method using isotope ratio mass spectrometry;

果汁和蔬菜汁.果汁中果肉里面稳定碳同位素比例(C/C)的测定.使用同位素比例-质谱测量的方法

属类：行业标准名称-国际标准-DIN V ENV 13070-1998

Isotope Geochemistry of the Kangshan Gold Deposit in Henan and Its Illustration of the CPMF Model

河南康山金矿同位素地球化学及其对成岩成矿及流体作用模式的印证

属类：行业术语-中文论文标题-

Nuclear fuel technology-Preparation of plutonium sources and determination of <(hoch)238>Pu/<(hoch)239>Pu isotope ratio by alpha spectrometry

核燃料技术.钚源的制备以及利用α谱仪测定238Pu/239Pu同位素比值

属类：行业标准名称-ISO标准-

Re-Os Isotope Tracing and Dating of Black Shales and Oceanic Anoxic Events

黑色叶岩与大洋缺氧事件的Re-Os同位素示踪与定年研究

属类：行业术语-中文论文标题-

Lead Isotope Geochemistry and Ore-forming Age of Jinchuantang Sn-Bi Deposit in Dongpo Ore Field, Hunan Province

湖南东坡矿田金船塘锡铋矿床铅同位素地球化学及成矿年龄

属类：行业术语-中文论文标题-

Stable Isotope Composition of Guliku Gold(-Silver)Deposit

吉利库金(银)矿床的稳定同位素地球化学特征

属类：行业术语-中文论文标题-

Paleoclimate Significance of the Total Organic Carbon and Organic Carbon Isotope and Magnetic Susceptibility of the Jiangling Section, Jianghan Plain, Hubei Province

江汉平原江陵剖面有机碳含量、碳同位素和磁化率的古气候意义

属类：行业术语-中文论文标题-

Today, most cyclotrons are used either for instructional purpose or for isotope production

今天大多数回旋加速器是用在教学上，或者用于同位素生产。

属类：综合句库--

The importation of the radioactive isotope , radiation equipment and other radioactive materials should come up to applicable state regulations.

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。

属类：法学专业-中国法律-职业病防治法

Method for determination of stable hydrogen isotope ratio (UP2H/UP1H)of water from fruit juices, using isotope ratio mass spectrometry

利用等离子比质谱测量法测定果汁水中稳定氢等离子比(UP2H/UP1H)的方法

属类：行业标准名称-国际标准-BS DD ENV 12142-1997

Method for determination of stable oxygen isotope ratio (UP1UP8O/UP1UP6O)of water from fruit juices, using isotope ratio mass spectrometry

利用等离子比质谱测量法测定果汁水中稳定氧等离子比(UP1UP8O/UP1UP6O)的方法

属类：行业标准名称-国际标准-BS DD ENV 12141-1997

Method for determination of stable carbon isotope ratio (UP1UP3C/UP1UP2C)of sugars from fruit juices, using isotope ratio mass spectrometry

利用等离子比质谱测量法测定果汁糖的稳定碳等离子比(UP1UP3C/UP1UP2C)的方法

属类：行业标准名称-国际标准-BS DD ENV 12140-1997

Confirmation of Groundwater Pollution Sources by Stable Isotope and Hydrochemistry Method

联合稳定同位素与水化学方法确定地下水污染源

属类：行业术语-中文论文标题-

The nitrate and chlorate, very volatile, give off brilliant crimson flames and are used in flares, fireworks, and tracer bullets. The radioactive isotope strontium-90 (see radioactivity), produced in nuclear explosions, is the principal health hazard in fallout; it can replace some of the calcium in foods, concentrate in bones and teeth, and cause radiation injury.

卤化锶、硝酸锶和氯酸锶极易挥发，并能使火焰呈亮猩红色，用于各种照明弹、烟花和曳光弹中。经核爆炸形成的带放射性的同位素锶-90，被认为是落尘中最危险的成分;它能取代食物中的一些钙，集中于骨骼和牙齿，而造成辐射伤害。

属类：化学及生命科学-化学-

The Minnesota work on kaersutite also showed the presence of the isotope neon-21

明尼苏达大学关于钛角闪石的研究表明，其中也存在同位素氖-21。

属类：综合句库--

Evaluation of the Radiation Preventive Effect of a Newly-founded Isotope Device in a Coking Factory

某焦化厂新建同位素装置放射防护控制效果评价

属类：行业术语-中文论文标题-

A silvery,metallic,naturally radioactive element,atomic number93,the first of the transuranium elements.Its longest-lived isotope is Np-237with a half-life of2.1million years.Found in trace quantities in uranium ores,it is produced synthetically by nuclear reactions.

镎一种银白色的、金属性天然放射性元素，原子序数为93，第一个超铀元素。其最长寿命的同位素为Np-237，半寿命为210万年。见于铀矿的示踪量中，由核反应合成生产出来

属类：综合句库--

A radioactive transuranic element in the actinide series,artificially produced in trace amounts.Its longest-lived isotope is No255with a half-life of3minutes.Atomic number102.

锘在锕类元素中的一种放射性超铀元素，人工微量制造，其最长寿命的同位素是锘255，其半衰期为三分钟，原子序数

属类：综合句库--

How To Explain Pb Isotope Data: Comments on a Paper by She Hongquan et al. in 《Mineral Deposits》

如何解释陈家杖子金矿的铅同位素资料―与畲宏全等商榷

属类：行业术语-中文论文标题-

A radioactive isotope of thorium with mass number228.

射钍钍的放射性同位，质量数为

属类：综合句库--

An obvious restraint in the use of isotope ratios results from the need to employ mass spectrometers

使用同位素比值法有着一个明显的局限因素，就是要用质谱仪进行分析。

属类：综合句库--

An identifiable substance,such as a dye or a radioactive isotope ,that is introduced into a biological or mechanical system and can be followed through the course of a process,providing information on the pattern of events in the process or on the redistribution of the parts or elements involved.

示踪剂一种可用来识别的物质，如一种染剂或放射性同位素，可被引入生物或化学系统内并在某过程的行进方向上被跟踪，提供有关过程中事件类型或涉及到的部分或成分的重新配置的信息

属类：综合句库--