因為受力不均勻了?
所有跟帖:
• 是,可以一麵開一麵注意有沒有變化 -fourwaves- ♂ (0 bytes) () 03/13/2016 postreply 12:19:10
• 是,可以一麵開一麵注意有沒有變化 -fourwaves- ♂ (0 bytes) () 03/13/2016 postreply 12:19:10
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