A、消除和改善晶内偏析
B、<span style="FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">消除冷塑性变形后产生的加工硬化</span><span lang="EN-US" style="mso-bidi-font-weight: bold"></span>
C、<span style="FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">降低硬度以便于加工</span><span lang="EN-US" style="mso-bidi-font-weight: bold"><p></p></span>
D、<span style="FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">获得细珠光体以提高强度</span>
B、<span style="FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'">消除冷塑性变形后产生的加工硬化</span><span lang="EN-US" style="mso-bidi-font-weight: bold"></span>
C、<span style="FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'">降低硬度以便于加工</span><span lang="EN-US" style="mso-bidi-font-weight: bold"><p></p></span>
D、<span style="FONT-FAMILY: 宋体; mso-bidi-font-weight: bold; mso-ascii-font-family: \'Times New Roman\'; mso-hansi-font-family: \'Times New Roman\'">获得细珠光体以提高强度</span>
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