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the differential meter for competitions of high jump and pole vault.
the differential meter for competitions of high jump and pole vault.
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机译:用于跳高和撑竿跳高比赛的差速器。
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摘要
the differential meter in widget allows to detect every jump the effective quota exceeded by the athlete.competitors will have the opportunity to determine their best performance at each attempt, the first, making the competition more technically valid and more interesting to the audience.
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