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浓集克拉克值
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浓集克拉克值
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浓集克拉克值
某元素在某一地区或某一地质体内的平均含量与该元素的地壳克拉克值的比值。
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technological diffusion
technological economics of urban rail transit
technological feature of ore-processing
technological gap theory
technological innovation
technological innovation and application of grassland ecological restoration and sustainable management in the headwaters region of three rivers
technological innovation efficiency
technological innovation of enterprise
technological innovation strategy
technological intermediary
technological know-how
technological leapfrogging
technological lock-in
technological opportunity
technological paradigm
technological pedagogical and content knowledge
technological physics
technological process of three- transformation,two-separation and reuse
technological reserve
technological risk
technological strategy
technological test for semiconductor process
technological transformation
technological type of ore
technologies for waste heat and pressure energy recovery
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