1. There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.
   这里有37讲，主要是地质年代学、放射性同位素地球化学和稳定同位素地球化学。
2. Either of two decay products of thorium,mesothorium I,an isotope of radium,or mesothorium II,an isotope of actinium.
   新钍钍的两种放射性生成物之一，即新钍1号，它是镭的同位素，或新钍2号，它是锕的同位素
3. the atomic structure 、nuclide 、isotope 、isomere、 radionuclides、stable nuclide.
   原子核的结构、核素、同位素、同质异能素、放射性核素与稳定性核素。
4. The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid.
   采用催化气液同位素交换法制备了氚化雷公藤甲素,探讨了反应时间和反应介质对反应产额的影响。
5. isotopes that emit radioactive particles; a stove emitting heat.
   发射出放射性粒子的同位素；发出热量的炉子
6. The distribution and accumulation dynamic of 14CO32- in red common carp and hornwort was studied by using isotope-tracer technology.
   本文采用同位素示踪技术研究了14CO32-在红鲤和金鱼藻中的分布与积累动态。
7. The researchers found that isotopes from the shock front were mixed into the protosun in a manner consistent with their origin in a supernova.
   研究人员发现，激波阵面中的同位素混合到原太阳中，混合方式跟起初在超新星中的时候一致。
8. The radiochemical separation procedure of ~(132)I was designed on the basis of half-lives of iodine and tellurium isotopes in mixed fission products.
   依据混合裂变产物中碘及其母体碲的同位素的半衰期设计分离132I的流程。
9. The lead isotope study shows that ores of the Mujiazhuang copper deposit and the host rocks contain very high radiogenic lead.
   研究表明，穆家庄铜矿矿石铅和近矿围岩岩石铅具有极高的放射性成因铅特点。
10. Through K-Ar isotope age study in pillow basalt,has gained the isochrone age is 139Ma.The age is the formation age of pillow basalt.
    在枕状玄武岩中获得K-Ar（全岩）同位素年龄为139Ma（测试单位：宜昌地质矿产所同位素室），因此确定其时代为晚侏罗世晚期。
11. a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands.
    一种软质、银白色、放射性四价金属元素，同位素用作核反应能源，见于钍矿和独居石沙中。
12. High mass resolution spectrometer for isotope seperator on line(ISOL) in(Beijing) radioactive ion-beam facilities(BRIF) project requires mass resolving power of(20 000).
    13串列加速器升级工程中的在线同位素分离器(ISOL)高质量分辨谱仪要求20000的质量分辨率。
13. 13串列加速器升级工程中的在线同位素分离器(ISOL)高质量分辨谱仪要求20000的质量分辨率。
    High mass resolution spectrometer for isotope seperator on line(ISOL) in(Beijing) radioactive ion-beam facilities(BRIF) project requires mass resolving power of(20 000).
14. Uranium isotope abundance ratio has been measured by total sample evaporation and signal integration,and a thermal surface ionization mass sepctrometry equipped with multicollector has been used.
    采用全蒸发技术、离子流强度积分的方式,用多接收器热表面电离质谱计测量铀同位素丰度。
15. Objective:To develop a method for determining the metabolites of nitrofuran antibiotics in aquatic products by HPLC-MS/MS using isotope internal standard dilution technique.
    目的:建立测定水产品中呋喃唑酮、呋喃它酮、呋喃西林和呋喃妥因等硝基呋喃代谢物的同位素内标稀释高效液相色谱-串联质谱法。
16. Breath tests using fatty acids with a stable isotope (13C) were carried out on patients with SSc in order to detect malabsorption and hypoperistalsis.
    为检测肠道吸收异常和蠕动功能降低，我们对硬皮病患者使用稳定同位素13C标记的脂肪酸吸收呼吸试验，前瞻性地观察到了胃肠道的受累过程。Tritium is one of the mildest radioactive isotopes.
    氚是辐射最和缓的放射性同位素之一。
17. There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.
    这里有37讲，主要是地质年代学、放射性同位素地球化学和稳定同位素地球化学。
18. The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid.
    采用催化气液同位素交换法制备了氚化雷公藤甲素,探讨了反应时间和反应介质对反应产额的影响。
19. High mass resolution spectrometer for isotope seperator on line(ISOL) in(Beijing) radioactive ion-beam facilities(BRIF) project requires mass resolving power of(20 000).
    13串列加速器升级工程中的在线同位素分离器(ISOL)高质量分辨谱仪要求20000的质量分辨率。
20. The lead isotope study shows that ores of the Mujiazhuang copper deposit and the host rocks contain very high radiogenic lead.
    研究表明，穆家庄铜矿矿石铅和近矿围岩岩石铅具有极高的放射性成因铅特点。
21. Through K-Ar isotope age study in pillow basalt,has gained the isochrone age is 139Ma.The age is the formation age of pillow basalt.
    在枕状玄武岩中获得K-Ar（全岩）同位素年龄为139Ma（测试单位：宜昌地质矿产所同位素室），因此确定其时代为晚侏罗世晚期。
22. The researchers found that isotopes from the shock front were mixed into the protosun in a manner consistent with their origin in a supernova.
    研究人员发现，激波阵面中的同位素混合到原太阳中，混合方式跟起初在超新星中的时候一致。
23. Breath tests using fatty acids with a stable isotope (13C) were carried out on patients with SSc in order to detect malabsorption and hypoperistalsis.
    为检测肠道吸收异常和蠕动功能降低，我们对硬皮病患者使用稳定同位素13C标记的脂肪酸吸收呼吸试验，前瞻性地观察到了胃肠道的受累过程。
24. Uranium isotope abundance ratio has been measured by total sample evaporation and signal integration,and a thermal surface ionization mass sepctrometry equipped with multicollector has been used.
    采用全蒸发技术、离子流强度积分的方式,用多接收器热表面电离质谱计测量铀同位素丰度。

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