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
톱니멈춤쇠는 기계의 회전을 제어하는 데 사용됩니다.topni meomchumsoeneun gigeui hoejeon-eul jeohaneun de sayongdoemnida.The pawl is used to control the rotation of the machine.