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
장력학은 물체의 장력을 측정하는 과학입니다.jangnyeokhak-eun mulche-ui jangryeog-eul cheugjeonghaneun gwahag-imnida.Tensiometry is the science of measuring the tension of objects.