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water geochemical survey
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water geochemical survey
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理学
地球化学勘查
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water geochemical survey
水地球化学测量
通过系统采集地表水或地下水样品,分析其中所含化学元素、化合和其他地球化学指标的含量,发现水化学异常及其空间分布,研究异常元素来源成因、迁移途径及影响因素,以达到矿产勘查、污染调查、风险评价与监测预警等目的的勘查方法。
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electronic voltmeter
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electronic waste law
electronic weigher
Electronic word of mouth
electronic yarn cleaner
electron impact
electron impact (EI)
electron impact ionization
electron injection layer
electron ion coincidence measurement
electron-ion collider
electron ionization
electron ionization (EI)
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