查询词典 isotope

In this study, bound residues of [C ring-U-14C]ZJ0273 in three kinds of soil and dynamics distribution in humus fulvic acid, humin and humic acid were studied by using 14C isotope tracer techniques.

本文利用14C同位素示踪技术，研究了[C环-U-14C]丙酯草醚(ZJ0273)在3种不同类型好氧土壤中的结合残留及其在富啡酸、胡敏酸和胡敏素中的动态分布。

Utilizing hydrochemistry analysis and oxygen and hydrogen isotope analysis, integrating with hydrogeologic condition, the water environment of study area is described and reference to engineering construction is provided.

利用水化学、氢氧同位素分析，结合研究区水文地质条件，阐述了研究区水环境特征，为工程建设提供了参考依据。

So it can be concluded that environmental isotope and hydrochemistry can be used as a useful measure for dike leakage study and a guidance for dike reinforcement.

当水处于长期蒸发的条件下，许多环境的轻水分子如162HO容易逸出水体，较

Hydrochemistry, isotope and CFCs were used to determine groundwater transport in the eastern part of the Guanzhong Basin.

中文摘要关中盆地地下水化学类型多样，成分复杂，空间上有淡水和咸水共存，在城市及周边地区有不同程度水质污染。

This paper deals with basic principles and methods of application of environmental isotope and hydrochemistry to tracing groundwater movement and employs them in identification of groundwater system, solution of specialized hydrogeologic problems and creation of hydrogeologic conceptual model in an extra-long tunnel area.

本文较完整地阐述了应用环境同位素与水化学示踪地下水运动的基本原理与方法，并首次将其系统地应用于特长隧道地区地下水系统的识别、专门水文地质问题的解决和水文地质概念模型的建立。

Hydrochemistry and stable isotope of groundwater was systematically analyzed by AquaChem and Grapher in this paper. Combining with topography and hydrology condition, this paper analyzed thoroughly different recharge source of groundwater in different area, and found out the hydraulic contact between Karst groundwater and shallow groundwater.

本文利用水化学和氢氧稳定同位素分析数据，借助AquaChem软件和Grapher软件，结合当地地形和水文条件，系统地分析了岩溶地下水和浅层地下水的水文地球化学演化特征，分析了不同地段地下水的补给来源，揭示了浅层地下水与岩溶地下水的水力联系。

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。

Gated ~(99)Tc~m-hexakis-2-methoxy-isobutyl isonitrile /~(18)F-fluorodeoxyglucose single photon emission tomography with dual isotope simultaneous acquisition can provide the information about left ventricular function, myocardial perfusion and metabolism simultaneously.

~(99)Tc~m-甲氧基异丁基异腈和~(18)F-脱氧葡萄糖双核素同时采集单光子计算机断层显像可以一次显像获得左心室心肌的血流灌注和葡萄糖代谢的情况，如果加上门控采集，可以同时了解左心室功能的信息。

ABSTRACT Gated 〓Tc〓-hexakis-2-methoxy-isobutyl isonitrile /〓F-fluorodeoxyglucose single photon emission tomography with dual isotope simultaneous acquisition can provide the information about left ventricular function, myocardial perfusion and metabolism simultaneously.

Tc〓-甲氧基异丁基异腈和〓F-脱氧葡萄糖双核素同时采集单光子计算机断层显像可以一次显像获得左心室心肌的血流灌注和葡萄糖代谢的情况，如果加上门控采集，可以同时了解左心室功能的信息。

The lithochemistry,REE and isotope characteristic of strontium,oxygen and lead of Laowan granite show that the granite originates from lower crust by partial melting.

老湾花岗岩的岩石化学、稀土元素和同位素特征指示出老湾花岗岩源于下地壳经部分熔融作用形成。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。