释放出辐射的原子被称为放射性核素。
意味着健康威胁的主要的放射性核素包括放射性铯和放射性碘。
The main radionuclides representing health risk are radioactive caesium and radioactive iodine.
不管怎样，伊朗可以从私人供应商那里买到医用核素，正像大部分其他国家那样。
In any event, Iran could buy medical isotopes it needs from private suppliers, as most other countries do.
放射性核素释放的能量减半需要的时间范围是几分之一秒到几百万年，取决于原子的类型。
The time required for the energy released by a radionuclide to decrease by half (i.e., the "half-life") range from tiny fractions of a second to millions of years depending on the type of atoms.
放射性也可以被冲入河流、湖泊和海洋，在这些地方鱼类和海产食品可能会吸收放射性核素。
Radioactivity can also be washed into rivers, lakes and the sea where fish and seafood could take up the radionuclides.
目的探讨双核素肾动态显像对肾功能的评价。
Objective Using dual nuclide renal dynamic imaging to evaluate renal function.
放射性核素分布变化与肝损伤类型有较好的相关性。
The changes in distribution of radioactive nuclide are correlated with the types of liver injury.
放射性核素示踪法是土壤侵蚀研究的一种重要方法。
It is an important method to investigate soil erosion that using radionuclides tracks down.
核素心肌断层显像应为诊断心肌梗死的常规检查方法。
However, radionuclide myocardial imaging should be the routine method for the diagnosis of old myocardial infarction.
甲状腺核素扫描主要表现为“冷”结节（88.9%）。
The proportion of cold nodules was 88.9% by radioisotope scanning.
目的应用放射性核素脾显像评价保留性脾手术后的脾功能。
Objective To evaluate the splenic function with radionuclide spleen imaging after spleen-preserving operation.
在测量这些核素时，通常存在同位素和同量异位素的干扰。
Measurement of these nuclei are often limited by interferences of isotopes and isobars.
目的评价放射性核素肺灌注显像在诊断急性肺动脉栓塞中的价值。
Objective To evaluate the clinical value of radionuclide pulmonary perfusion imaging in diagnosing acute pulmonary embolism.
目的：比较放射性核素骨显像和MRI在诊断骨转移瘤上的价值。
Objective: To compare the efficiency of radionuclide imaging and MRI in diagnosing metastatic tumor of bone.
估算了该地区居民对6种放射性核素的年摄入量和有效剂量当量。
The annual in takes of 6 radionuclides and resultant committed dose equivalents to the inhabitants were estimated.
目的探讨用核素肝胆动态显像诊断胆道术后胆道是否狭窄的价值。
Objective to investigate the value of radionuclide hepatobiliary dynamic imaging in diagnosing stricture after biliary surgery.
细胞核内的核素对细胞核吸收剂量的贡献远大于细胞质中的核素。
The contribution of intranuclear radionuclides to mean absorbed dose was larger than that of extranuclear ones.
核素扫描显示多个病灶，脊柱周围颜色较深的病灶代表转移性病变。
This nuclear medicine bone scan reveals multiple areas of increased uptake, which are the darker foci, such as in the vertebral column representing metastases.
文章主要介绍了几个治疗核素标记抗体在肿瘤治疗方面的应用与进展。
The application and evolution of several therapy nuclides labelled antibody in tumour therapy are introduced.
目的评价直肠癌病人术前淋巴管造影和放射性核素淋巴显像的临床价值。
Objective The aim of this paper is to study the value of preoperative lymphography and radionuclide imaging for rectal cancer patients.
目的利用放射性核素显像研究十二指肠电刺激对人小肠通过时间的影响。
Objective To study the effects of duodenal electrical stimulation on small intestine transit function by radionuclide imaging.
该类型吸附剂用于海水提铀研究及海水中某些核素含量分析的样品前处理。
This kind of adsorbent was used for extraction uranium from seawater and pretreatment of seawater in several nuclide contents analysis.
铀矿山坑道污水含有铀、镭、钍、钋等放射性核素，外排前必须加以处理。
There are some radioactive nuclides such as uranium, radium, thorium and polonium in pit effluent of uranium mine.
目的：评价骨髓核素显像对再生障碍性贫血(简称再障)的临床诊断价值。
Aim: To evaluate the clinical value of bone marrow imaging in the diagnosis of aplastic anemia (AA).
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。
The results showed that the radioactivity levels of each nuclide in Yangtze River water system were still lower than that of background, and did not cause contamination.
目的探讨核素骨扫描在儿童神经母细胞瘤临床分期和疗效评价中的应用价值。
Objective to evaluate the significance of bone scan in the clinical staging and evaluation of therapeutic effect of neuroblastoma.
悬浮物对放射性核素的吸附沉降是影响海湾水体中核素迁移的重要机制之一。
The adsorption sedimentation of radionuclide on suspended matter is an important mechanism affecting the radionuclide migration in the bay.
放射性核素或核素用于医疗或工业目的，例如：钴60、铯131和碘132。
Radionuclides or isotopes for medical or industrial purposes, such as Cobalt 60, Caesium 131 and lodine 132.
放射性核素或核素用于医疗或工业目的，例如︰钴60、铯131和碘132。
Radionuclides or isotopes for medical or industrial purposes, such as Cobalt 60, Caesium 131 and lodine 132.
放射性核素或核素用于医疗或工业目的，例如︰钴60、铯131和碘132。
Radionuclides or isotopes for medical or industrial purposes, such as Cobalt 60, Caesium 131 and lodine 132.
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