This paper presented a nondamage density method for identifving god articles as an embellishment characterized by swiftness, accuracy and convenience.

 
  • 密度法無(wú)損檢測金飾品具有簡(jiǎn)單、準確、快速的特點(diǎn)。
今日熱詞
目錄 附錄 查詞歷史
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