8030| 11
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激光加工是否傷身體,? |
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點評
鑒于此點,,可以戴護目鏡,,國外的企業(yè),無論數(shù)沖還是激光都戴護目鏡,。身體是革命的本錢�,。�
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點評
嗯,,好專業(yè),!學習了,!
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評分
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