| 摘要 |
The device comprises a mock golf ball (8) connected to the first rotator (1) through a spring (8a) and a connecting rod (9); the first rotator (1) pivoting up and down on the axle of the second rotator (2); the third rotator (3) connected to the second rotator (2) through a fixing pole (5) and a connecting rod (6), the fixing pole (5) fixed to the upper face of the second rotator (2) being coupled with the connecting rod (6) of which other end is fixed to the outer face of the third rotator (3); a means for converting a rotating velocity of the first rotator into force dimensions; a means for measuring the rotating angles of the first and third rotators to find out the flying tracks of the hit mock ball (8); and a means for returning the first and third rotators (1),(3) to the original positions.
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