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viewimage.php?no=24b0d769e1d32ca73dec80fa11d028316f56ba15eaa5e1d2899cddb8daa73ba9582609fa496b9d6ea0da2fd62441df81cc38b74f2baf96d739ff02a864fe87e4aa3458a0024c7e7d196c3eb0a51fde2c4a7d29f9696f122abea3cc27132b69b6d7665b8a3ecd53dff0c97540536e93

변화된길이가 왜 22.5mm라는거? 원래 길이가 18mm인데 4.5mm가 변화된 길이 델타 아님??