nuclide

简明释义

英[ˈnjuːklaɪd]美[ˈnjuːˌklaɪd]

n. [核] 核素

英英释义

单词用法

同义词

反义词

例句

1.The data of each module is passed by data file. Whole software includes parameters input module, environmental nuclide concentration calculation module and dose calculation module.

各模块间的数据以数据文件传递，整个软件包括各个参数输入模块，各种环境核素浓度计算模块和剂量计算模块。

2.Objective To investigate the diagnostic value of myocardial nuclide imaging, coronary angiography and electrocardiogram treadmill exercise test on coronary heart disease.

目的探讨核素心肌灌注显像、冠脉造影及平板运动心电图对冠心病的诊断价值。

3.In communicating hydrocephalus, round-blunt ascending tridentate imaging was showed, the nuclide was accumulated on the surface of cerebrum and longitudinal fissure and dissipation time was delayed.

交通性脑积水表现为上行三叉影像圆钝，核素在脑表面和纵裂区蓄积且消散时间延长。

4.The invention belongs to the field of nuclear medicine and relates to radioactive nuclide labeling tumor vascularization specific polypeptide.

本发明属于核医学领域，涉及放射核素标记肿瘤血管化特异性多肽。

5.Radioactive nuclide lung perfusion plays an important role in diagnosis of PE. The standard thrombolytic therapy may improve the prognosis significantly.

肺灌注显像具有一定的诊断价值，规范化溶栓治疗，可显著改变预后。

6.Objective:To access the value of nuclide imaging on the diagnosis and prognostic evaluation of pulmonary embolism(PE).

目的：讨论核素显像在肺栓塞（PE）诊断及预后评价的价值。

7.Gamma camera belongs to the radiation nuclide imaging equipment.

相机属于放射性核素成像设备。

8.The results showed that the raioac-tivity levels of each nuclide in Yangtze River water system were still lower than that of background, and did not cause contamination.

结果表明，各核素均未对长江造成污染，长江水系放射性浓度仍在本底水平。

9.Results:Cholestasis type was found in 8 patients by delayed nuclide imaging.

结果：8例胆道延时，核素显像为胆汁淤滞型阻塞型黄疸。

10.Research on radioactive nuclides 核素 provides insights into the age of geological formations.

对放射性nuclides 核素的研究为地质形成的年龄提供了见解。

11.The stability of a given nuclide 核素 can be determined by its half-life.

一个给定的nuclide 核素的稳定性可以通过其半衰期来确定。

12.In nuclear medicine, specific nuclides 核素 are used for diagnosis and treatment.

在核医学中，特定的nuclides 核素被用于诊断和治疗。

13.Different nuclides 核素 have unique properties that make them suitable for various applications.

不同的nuclides 核素具有独特的性质，使它们适合于各种应用。

14.The decay of a nuclide 核素 can release energy in the form of radiation.

一个nuclide 核素的衰变可以以辐射的形式释放能量。

作文

In the realm of nuclear physics, the term nuclide (核素) plays a crucial role in understanding the composition and behavior of atomic nuclei. A nuclide is defined as a distinct kind of atom characterized by its number of protons and neutrons, which collectively determine its atomic mass and stability. Every element on the periodic table can exist in different forms known as nuclides, which may vary in their neutron count while retaining the same number of protons. This variation leads to the formation of isotopes, which are specific types of nuclides that share the same atomic number but differ in mass due to the different number of neutrons.Understanding nuclides is essential for various scientific fields, including chemistry, medicine, and environmental science. For example, in medical applications, certain nuclides are utilized in diagnostic imaging and treatment. Radioactive nuclides, such as Technetium-99m, are commonly used in medical scans to visualize organs and tissues, providing critical information for diagnosis and treatment planning.Moreover, the study of nuclides extends beyond medicine into the field of nuclear energy. Different nuclides can undergo nuclear fission or fusion, processes that release vast amounts of energy. Understanding the characteristics of these nuclides allows scientists to harness their properties for energy production. For instance, Uranium-235 and Plutonium-239 are nuclides that are key players in nuclear reactors, where their ability to sustain a chain reaction is exploited to generate electricity.Additionally, nuclides are important in the context of environmental monitoring and safety. The presence of certain radioactive nuclides in the environment can indicate contamination from nuclear accidents or waste disposal. By studying the behavior and decay of these nuclides, scientists can assess risks and implement safety measures to protect public health and the ecosystem.The classification of nuclides can be further divided into stable and unstable categories. Stable nuclides do not undergo radioactive decay, while unstable ones, or radioactive nuclides, emit radiation as they transform into more stable forms over time. This transformation is described by half-lives, which indicate the time it takes for half of a sample of a radioactive nuclide to decay. Understanding these concepts is vital for fields like radiometric dating, where scientists use the decay of specific nuclides to determine the age of ancient artifacts and geological formations.In conclusion, the concept of nuclide (核素) is fundamental to our understanding of atomic structure and behavior. From medical applications to energy production and environmental monitoring, nuclides play a pivotal role in various scientific disciplines. As research continues to advance, our knowledge of nuclides will undoubtedly lead to new innovations and improvements in technology, health, and safety. Therefore, grasping the significance of nuclides is essential for anyone interested in the sciences, as they are integral to many of the challenges and advancements we face today.

在核物理学领域，术语nuclide（核素）在理解原子核的组成和行为方面起着至关重要的作用。nuclide被定义为一种特定类型的原子，其特征在于其质子和中子的数量，这共同决定了其原子质量和稳定性。周期表上的每种元素都可以以不同的形式存在，这些形式称为nuclides，它们可能在中子数量上有所不同，同时保持相同的质子数量。这种变化导致了同位素的形成，同位素是特定类型的nuclides，它们具有相同的原子序数，但由于中子数量不同而在质量上有所不同。了解nuclides对化学、医学和环境科学等多个科学领域至关重要。例如，在医学应用中，某些nuclides用于诊断成像和治疗。放射性nuclides，例如锝-99m，通常用于医学扫描，以可视化器官和组织，为诊断和治疗计划提供关键信息。此外，nuclides的研究不仅局限于医学，还延伸到核能领域。不同的nuclides可以经历核裂变或核聚变，这些过程释放出大量的能量。了解这些nuclides的特性使科学家能够利用它们的属性进行能源生产。例如，铀-235和钚-239是核反应堆中的关键nuclides，它们维持链式反应的能力被利用来发电。此外，nuclides在环境监测和安全方面也很重要。某些放射性nuclides在环境中的存在可能表明核事故或废物处置造成的污染。通过研究这些nuclides的行为和衰变，科学家可以评估风险并实施安全措施，以保护公众健康和生态系统。nuclides的分类可以进一步分为稳定和不稳定类别。稳定的nuclides不会经历放射性衰变，而不稳定的，即放射性nuclides，在转变为更稳定的形式时会发出辐射。这种转变由半衰期描述，半衰期表示一组放射性nuclide衰变一半所需的时间。理解这些概念对于放射性测年等领域至关重要，科学家利用特定nuclides的衰变来确定古代文物和地质构造的年龄。总之，nuclide（核素）的概念是我们理解原子结构和行为的基础。从医学应用到能源生产和环境监测，nuclides在各种科学学科中发挥着关键作用。随着研究的不断推进，我们对nuclides的知识无疑将导致新创新和技术、健康和安全的改善。因此，掌握nuclides的重要性对于任何对科学感兴趣的人来说都是必不可少的，因为它们是我们今天面临的许多挑战和进步的核心。