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以访谈对象人数划分的一种访谈类型,它把一组人集中到一起进行访谈,受访者在访谈者的带领下就某些话题展开集体讨论,又名座谈会或集体访谈。
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tailings embankment
tailings extraction
tailings extraction of valuable components
tailings filling
tailings filteration
tailings for agricultural use
tailings having water
tailings management of mineral processing plant
tailings moisture
tailings of antimonyores
tailings of bauxites
tailings of chromeores
tailings of copperores
tailings of ferrous metal ores
tailings of goldores
tailings of iron ores
tailings of iron sulfide ores
tailings of lead and zinc ores
tailings of manganese ores
tailings of metal ores
tailings of molybdenumores
tailings of nickel ores
tailings of nonferrous metal ores
tailings of non-metal ores
tailings of polymetallicores
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