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quality ranges中文是什么意思

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用"quality ranges"造句"quality ranges"怎么读"quality ranges" in a sentence

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  • 质量范围

例句与用法

  • On the basis of the study on the mineral composition and rock types of jadeite , the authors determine that the specific density and refractivity of jadeite ranges from 2 . 93 to 3 . 60 and from 1 . 593 to 1 . 750 respectively , the specific density and refractivity of jadeite with high quality ranges from 3 . 178 to 3 . 240 and from 1 . 644 to 1 . 657 respectively , and offers the objective basis for jadeites quality appraisal , through setting up several charts of the relation between jadeite ' s specific density refractivity and its mineral composition
    从翡翠的岩石学、矿物学角度出发,讨论了翡翠的岩石类型,依据组成翡翠的主要矿物的比重和折射率值,建立了翡翠矿物组成成分及含量与其比重、折射率关系图解,确定了各种翡翠的比重、折射率变化范围分别为: 2 . 93 ~ 3 . 60和1 . 593 ~ 1 . 750 ;优质翡翠的比重、折射率分别为: 3 . 178 ~ 3 . 240和1 . 644 ~ 1 . 657 ,为翡翠的质量评估提供了客观依据。
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