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
신장계를 사용하여 재료의 변형을 측정할 수 있습니다.sinjanggye-reul sayonghayeo jaeryo-ui byeonhyeong-eul cheugjeonghal su itsseumnida.You can measure the deformation of the material using an extensometer.