同位素

The requirements and possibility for production of short-lived, neutron deficient radionuclides, for fast neutron therapy and activation analysis using cyclotrons are discussed briefly.

用回旋加速器来生产核医学所需的短寿命、缺中子同位素；用作为快中子治癌的中子源和用作活化分析工具，是回旋加速器在核医学领域中应用的主要方面。

The desorbed methane carbon isotope of coal core samples collected from Jincheng area, South Qinshui basin was measured.

对取自沁水盆地南部晋城地区的煤芯样中的解吸气进行了甲烷碳同位素测定。

Objective: To establish a sensitive method for the determination of ciprofloxacin in honey by liquid chromatography tandem mass spectrometry using deuterated isotope internal standard.

目的：建立蜂蜜中环丙沙星的氘代同位素内标液相色谱－串联质谱测定方法。

The alkylation of deuterated benzene with ethylene catalyzed by the dehydrated Cl/FeCl3 ionic liquid was investigated by GC-MS and 1H NMR.

将合成的Cl/FeCl3离子液体脱水，并采用同位素置换的方法研究了离子液体催化全氘代苯与乙烯的烷基化反应机理。

As a special form of polymer, the perdeuterated polymer foams not only have the microporours structure and good capabilities as same as nondeuterated polymer foams, but have some particular characters, such as isotope effect, nonradioactivity, and high deuterated ratio. For those reasons, the perdeuterated polymer foams will be used in many fields, especially in inertial confinement fusion and low wastage plastic.

全氘代聚合物泡沫作为一类特种聚合物材料，不仅具有常规聚合物泡沫材料所具有的微孔形貌和良好的物理化学、机械力学等性能，而且还具有独特的同位素效应，以及非常高的氘代率等特征，且无放射性，因而在激光惯性约束聚变(Initial Confinement Fusion，ICF)热核靶材料，以及低损耗塑料光纤材料等研究领域中具有十分广泛的应用前景。

As a special form of polymer, the perdeuterated polymer foams not only have the microporours structure and good capabilities as same as nondeuterated polymer foams, but have some particular characters, such as isotope effect, nonradioactivity, and high deuterated ratio.

摘要全氘代聚合物泡沫作为一类特种聚合物材料，不仅具有常规聚合物泡沫材料所具有的微孔形貌和良好的物理化学、机械力学等性能，而且还具有独特的同位素效应，以及非常高的氘代率等特征，且无放射性，因而在激光惯性约束聚变(Initial Confinement Fusion，ICF)热核靶材料，以及低损耗塑料光纤材料等研究领域中具有十分广泛的应用前景。

On the basis of a la rge number of previous research,geochemical characteristics and in dexes of mixed origin natural gases f rom Ordovician weathered crust gas r eservoirs in Central Gas Field in the Ordos Basin are systematically studied.

在前人大量研究的基础上，系统研究了该气田天然气混源的地球化学特征与标志，并利用多指标综合评价了气藏的气源。研究结果表明，鄂尔多斯盆地中部气田奥陶系风化壳天然气具有高—过成熟干气的组分和同位素特征。

The geochemical characteristics of the adsorbed gas in sample log verified that fault do play an important role for gas migration. The fault activity coincided with the isotopic composition of the adsorbed gas.

依据录井天然气的同位素特征和流体包裹体的分析证实了断裂是本区天然气垂向运移的主要通道，断层的活动与罐装岩屑录井气地球化学特征完全一致。

Through the channel way of the connnection of the base of Xujiaweizi linked system of faults with partial chamber,the carbonate dioxide gas in the mantle\|derived heat flow diapris move up into appropriate volcanic rock encirclement along the faults, and form gas pool.

对芳深 9、芳深 7、芳深 6井的天然气组成及甲烷同位素分析表明，松辽盆地北部昌德CO2 气为幔源无机气，该CO2 气是以由徐家围子连锁断层系下延与局部岩浆房相接作为通道，幔源热流底辟体中的CO2 气顺断层上移至合适的火山岩圈闭中而成藏

A single zircon U-Pb age of 3605±43 Ma from the oldest granite-gneiss was reported in Aketashtage, eastern Altyn Tagh, which is located on the southeastern margin of the Tarim Platform.

在阿尔金山阿克塔什塔格曾测得3605±43 Ma的单颗粒锆石U-Pb年龄数据，获得了古老地壳存在的同位素年代学信息。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。