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TheLeaningTowerofPisawasnotleaningwhenitwasbuiltin1173a...
  • TheLeaningTowerofPisawasnotleaningwhenitwasbuiltin1173a...

  • 问题详情:TheLeaningTowerofPisawasnotleaningwhenitwasbuiltin1173anditwasstraightlikeapole.Itstartedtoshiftdirectionsoonafterconstructionbecauseofpoorfoundationinadditiontothelooselayerofsubsoil(底土).Atthebeginning,itleanedtothesoutheastbeforetheshakyf...
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