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【多选题】
对结构件进行拉伸修复时,为什么不可以加热修复( ) ,A.
加热后金属品体变大
B.
加热后金属强度变弱
C.
加热后金属弹性变弱
D.
加热后便于维修
E.
加热后金属性能变差
拍照语音搜题，微信中搜索"皮皮学"使用
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