Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
반사측정을 통해 물체의 특성을 분석할 수 있습니다.bansacheugjeongeul tonghae mulcheui teukseongeul bunseokhal su itsseumnida.Through reflectometry, we can analyze the characteristics of the object.