... 二氧化锗GeO2 纯度Purity Grade 杂质含量，不大于Impurity content(≤,%） ...
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High Purity Grade 高纯级 ; 级别
nuclear purity grade sodium 核级钠
grade of purity 纯度
metal grade purity 金属品位级纯度 ; 金属级品位纯度
metal-grade purity 金属级品位纯度
Nanometer Grade High-purity Alumina 高纯纳米氧化铝
reactor grade purity 反应堆级纯
grade e of purity 纯度
Fewer than 2 percent of all diamonds in the world are given this grade of purity and most of those diamonds are white.
FORBES: Connect
Less than 2 percent of all diamonds in the world are given this grade of purity and most of those diamonds are white.
FORBES: Sotheby's to Offer 11-ct. Fancy Pink Diamond
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