2730| 31
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有什么簡單分辨常用金屬的方法,? |
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點(diǎn)評(píng)
最便捷,,快速的方法就是手持式檢測儀,,也準(zhǔn)確。
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點(diǎn)評(píng)
買包煙,去當(dāng)?shù)氐洚?dāng)行,,叫師傅檢測下,,他們回收貴金屬的,一般都有光譜分析儀
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