Isotopic trace injection profile logging theory is based on isotopic tracer measurement technology.
同位素示踪注水剖面测井的理论基础是同位素示踪测量技术。
At last, the author obtained the equation of ray trace in the GRIN ball lens with the index profile which is quadratic and drew some important conclusions.
研究了二次抛物线型的GRIN球透镜的光线轨迹方程序；得出其轨迹为椭圆曲线及一些重要结论。
The result showed that the tested trace elements had different distribution in different parent material profile and soil types. Red parent material had high content of total Zn.
结果表明：红土母质中全锌含量均高于黄土母质，全铜在不同亚类、不同母质黑土中含量分布变异较小；
Distribution map of trace elements in Liu 'an-caihe along the Dabie geoscience profile.
图4大别造山带地学剖面六安—蔡河地段微量元素分布图fig。
Distribution map of trace elements in Liu 'an-caihe along the Dabie geoscience profile.
图4大别造山带地学剖面六安—蔡河地段微量元素分布图fig。
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