radioactive isotope造句

• The breakdown of radioactive isotopes goes on at constant rates .
  放射性同位素的衰变在恒定的速率下进行。
• There are two main types of uses of radioactive isotopes in biochemistry .
  在生物化学中，放射性同位素主要有两方面的应用。
• The large number of radioactive isotopes among the heavy elements fit into three series .
  重元素中的大量放射性同位素分属于三个系列。
• The inferno spewed a deadly plume of radioactive isotopes into the atmosphere .
  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。
• A radioactive isotope of carbon , especially carbon14
  放射性碳碳的一种放射性同位素，尤指碳14
• The meteorite , which recently fell to the tropical island in pacific ocean , proved to be the present well of the thinnest radioactive isotope
  最近落到在太平洋的热带岛陨石证明是最薄的放射性的同位素的现在井
• Autoradiography a technique whereby a tin slice of tissue containing a radioactive isotope is placed in contact with a photographic plate
  放射自显影术：将含有放射性同位素的一小薄片生物组织与感光层接触的一项技术。
• 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。
• We can talk about the half - life of a radioactive isotope , and indeed we can measure and state very very precisely what that half - life is
  我们可以谈论放射性同位素的半衰期，我们确实可以非常准确地测量和描述半衰期是什么。
• Gamma rays have proved very helpful in medicine and industry . these rays are also given off by radioactive isotopes obtained as by - products in production processes
  射线已被证实在医学和工业上有很大的用处，这些射线是在生产过程中由放射性同伴素释放出的副产品。
• According to the off - line rnb ' s requirement of the radioactive isotope , the doubly odd nucleus 64cu produced by reactor was chosen as the first nuclide to carry out expermental research about the off - line rnb
  按照离线放射性核束对放射性同位素的要求，我们把堆照放射性同位素样品~ ( 64 ) cu作为首选核素来开展离线放射性核束的实验研究工作。
• Rather they were the products of the decay of radioactive isotopes of iodine , which in turn were formed from radioactive tellurium and so forth , according to a well - known sequence of nuclear reactions that gives rise to stable xenon
  它们其实是碘同位素放射衰变的产物，而碘是由放射性碲产生，依此类推，经由人们所熟知的一系列核反应而产生稳定的氙。
• For radioactive workplace and the transportation and storage of radioactive isotope , the employer should equip risk - prevention equipment and alarm devices , and ensure the employees exposed to radiation equipped with dose meter
  对放射工作场所和放射性同位素的运输、贮存，用人单位必须配置防护设备和报警装置，保证接触放射线的工作人员佩戴个人剂量计。
• Among them the x - ray diffraction analysis is mainly used to confirm clay mineral assemblages and their crystallinity ; chemical analysis and electronic microscope are used to study the source , the genesis and the evolvement process of clay minerals ; radioactive isotopes analysis can make up the relationship between the time and space which is based on the climate index and the chronology ; hydrogen and oxygen isotopes also provide important evidence for reconstructing paleoclimate
  其中， x射线衍射分析主要用来确定黏土矿物组合及其含量以及某些黏土矿物的结晶度化学分析电镜分析主要用于黏土矿物的来源成因演变过程的研究放射性同位素的研究使气候指标和年代学建立起时间和空间上的联系而氢氧同位素分析亦能对古气候重建提供重要佐证。
• Article 1 in order to strengthen the control of radiation accidents , to handle radiation accidents timely and effectively , and to reduce the consequences caused by the accidents , these provisions are formulated according to the provisions of the regulations on protection against radiation of radioactive isotopes and radial equipment ( hereinafter referred as the regulations ) , and of other relevant laws and regulations
  第一条为加强放射事故的管理，及时有效处理放射事故，减轻事故造成的后果，根据《放射性同位素与射线装置放射防护条例》 （以下简称《条例》及其他有关法律、法规的规定，制定本规定。
• These effects have been confirmed in highly sensitive experiments , and relativity is now a basic , everyday tool of experimental physics : particle colliders take advantage of the increase in mass and lifetime of fast particles ; experiments with radioactive isotopes depend on the conversion of mass into energy
  这些效应已经由高灵敏度的实验证实，而且相对论现在已成为实验物理学基本的日常工具：粒子对撞机利用增加快速粒子的质量与生命期来进行实验；放射性同位素的实验则依靠质量转变成能量。
• After 40 hour irradiation time , about 7 ci of radioactive isotope 64cu was produced via 63cu ( n , y ) 64cu reaction . after simple disposal , the irradiated copper sample was installed in the high - intesity ion sputter source on the hi - 13 tandem accelerator . then 64cu ions extracted from the high - intesity ion sputter source and injected into the tandem accelerator , 64cu ions can be accelerated to an energy of 80 mev and formed the off - line rnb since natural
  S ）的热中于通量下，经过34个半衰期辐照，通过‘ u … ， y ）生成放射性l司位素‘ cll ，然后将放射性铜靶锥注入串列加速器强流溅射离于源中，引出mcll负离于，经刁串列加速器加速而得到能量为80mcv的离线放射性核束“ cll叭。