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12在板状试件表面贴两片应变片，在力P作用下ε1=-120×10-6,ε2=40×10-6,那么泊松比为：
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12在板状试件表面贴两片应变片，在力P作用下ε1=-120×10-6,ε2=40×10-6,那么泊松比为：
A、)
B、)
C、)
D、)
时间：2021-09-08 14:07
关键词：
和学
华北水利
土木工程
材料力学
答案解析
C
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12在板状试件表面贴两片应变片，在力P作用下ε1=-120×10-6,ε2=40×10-6,那么泊松比为：
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