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second stage graphitization造句

"second stage graphitization"是什么意思   

例句與造句

  1. effect of electric field of pulse on transformation of perlite in second stage graphitization of nodular cast iron
    脈沖電場(chǎng)對(duì)球墨鑄鐵第二階段石墨化中珠光體轉(zhuǎn)變的影響
  2. It's difficult to find second stage graphitization in a sentence. 用second stage graphitization造句挺難的
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