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DEVICE FOR MONITORING BALL TOUCHING TIMEPERIOD IN PLAYING VOLLEY-BALL
DEVICE FOR MONITORING BALL TOUCHING TIMEPERIOD IN PLAYING VOLLEY-BALL
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机译:在排球比赛中监测球触碰时间的装置
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摘要
1.device for controlling the time of touching the ball in time касани i containing the sensor with a питани and display time касани , отличающеес whatin order to повышени objectivity контрол , it
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