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48.化工设备一般都采用塑性材料制成,其所受的压力一般都应小于材料的( ),否则会产生明显的塑性变形

发布于 2021-02-23 18:42:50

【单选题】
A 比例极限
B 弹性极限
C 屈服极限
D 强度极限

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quyu1 2023-02-23

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