| 摘要 |
FIELD: medicine, sports.SUBSTANCE: invention refers to sports equipment manufacturing. In a discus for throwing comprising two dished lids skirted with a common rim and coupled so as to form an in-between cavity, the rim comprises a circular slot 1/4-1/5 filled with shot balls. The shot balls are coated with an elastic layer.EFFECT: invention increases a distance of discus throw.2 cl, 2 dwg |
