我答一下,鐵重。因為鐵的重量裏不包含空氣的重量
所有跟帖:
• 你還要搞個真空的環境稱重 好麻煩的 -dqdeer- ♂ (0 bytes) () 03/21/2020 postreply 15:50:20
• 真空的1公斤棉花了? -caoc- ♀ (0 bytes) () 03/22/2020 postreply 11:17:18
• 你還要搞個真空的環境稱重 好麻煩的 -dqdeer- ♂ (0 bytes) () 03/21/2020 postreply 15:50:20
• 真空的1公斤棉花了? -caoc- ♀ (0 bytes) () 03/22/2020 postreply 11:17:18
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