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
초측미계를 사용하여 매우 작은 물체를 측정할 수 있습니다.chocheugmigye-reul sayonghayeo maeu jageun mulche-reul cheugjeonghal su itsseumnida.You can measure very small objects using an ultramicrometer.