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宝石改善
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宝石改善
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gemstones enhancement
宝石改善
运用某种技术方法和处理工艺,改善宝石的外观(颜色、净度或特殊光学效应)、耐久性或可用性,从而提高宝石美学价值和商品价值的过程(不包括对宝石进行切磨、抛光、雕刻和镶嵌等加工方法)。
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reservoir storage survey
reservoir structural modeling
reservoir structure
reservoir submerged line survey
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reservoir tracing
reservoir type for development geology
reservoir water and electric simulation methods
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Resettlement of Demobilized Soldiers Ordinance
resettlement of disaster victims
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resettlement of water resources project
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resettlement policy
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