The main problems are fluid flow and elemental transportation, the fluid rock interaction and the source of the fluid.
研究的主要问题是流体流动机制和元素迁移，流体-岩石相互作用和流体来源。
Studies of petrology and elemental geochemistry indicate that the Xiangshan uranium ore-field dacite porphyry belongs to intra-plate shoshonitic rock type and is a kind of shoshonitic dacite porphyry.
岩石学、元素地球化学研究表明，相山铀矿田的英安斑岩属于板内型钾玄质岩类，为钾玄质英安斑岩。
Soil culture experiment and frame experiment were carried out to study effects of application of elemental sulfur and phosphate rock.
本文通过土壤培养和框栽试验，探讨了硫磺与磷矿粉配合施用肥效方面的问题。
Soil culture experiment and frame experiment were carried out to study effects of application of elemental sulfur and phosphate rock.
本文通过土壤培养和框栽试验，探讨了硫磺与磷矿粉配合施用肥效方面的问题。
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