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請(qǐng)問(wèn),形成針狀?yuàn)W氏體和顆粒狀?yuàn)W氏體是好事還是壞事,?我覺(jué)得都是好事,,有利于后面... |
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點(diǎn)評(píng)
你也知道那些是奧氏體轉(zhuǎn)變產(chǎn)物,,而不是奧氏體本身,。
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