示踪元素

铀的地球化学行为决定了它在地层中有良好的可动性，因而是一种有用的示踪元素，可以用来追索沉积体系演化过程中发生的许多重要地质事件。

The geochemical behaviors of uranium determine it has good moveability in formation . As and available trace element , uranium can be used to recollect the important geological events happened in the evolution course of depositional system .

X射线衍射分析、扫描电镜观察发现，固化体中含有示踪元素锶、铒、铈的硅酸盐晶体，晶体周围分布着大量玻璃体。

XRD and SEM indicate that Sr , Er and Ce exist in the form of silicate crystals surrounded by glass .

美国马里兰，巴尔的摩人体暴露PM2.5和示踪元素。

Personal exposures to PM2.5 mass and trace elements in Baltimore , MD , USA.

镁铝类氢类氦类锂离子经中间双激发态进行的双电子复合过程在用双示踪元素谱线强度比研究ICF电子温度中占有很重要的地位。

The physical process of dielectronic recombination for H-like , He-like and Li-like ions of Mg and Al in the medial double ionized states plays an important role in studying laser inertial confinement fusion ( ICF ) electronic temperature by the method of the double traced materials isoelectronic X-ray spectrum .

示踪元素钐对磷酸盐玻璃微球性质的影响

Effect of Tracer Element Sm on the Properties of Phosphate Glass Microspheres

孔隙速度是示踪元素穿过孔隙介质的速度。电阻率-孔隙度交绘图法

The pore velocity is the velocity with which a tracer moves through a porous medium . resistivity-porosity cross plotting

中子活化示踪泥沙元素的分析方法

Analytic Method of Silt Element with Neutron Activation Trace

~（160）Tb同位素示踪研究稀土元素铽在雏鸡体内的分布和转运

Study on Distribution and Transportation of Rare Earth Element Tb in Chicken by ~ ( 160 ) Tb Isotopic Tracing

~（169）Yb，~（141）Ce示踪的稀土元素在小鼠体内的分布及与鼠肝蛋白的结合

Distribution and combination of Rare Earths with liver protein in mice traced by ~ ( 169 ) yb and ~ ( 141 ) ce

在海洋沉积环境和物源示踪研究中，元素地球化学方法起着非常重要的作用。

The element geochemistry plays an important role in the studies on marine sedimentary environment and provenance .