用天平稱一下重量,十年後再稱,差額就是損耗的塑料
所有跟帖:
• 好吧,大概輕了5毫克——你幾乎測不出這個變化,但是 -越王- ♂ (291 bytes) () 12/15/2024 postreply 13:34:43
• 好吧,大概輕了5毫克——你幾乎測不出這個變化,但是 -越王- ♂ (291 bytes) () 12/15/2024 postreply 13:34:43
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