| 摘要 |
A low silhouette oscillating platform upon which may be mounted a device or machine for throwing balls to a player or players for catching or batting practice. The oscillating platform allows the pitched balls to be distributed at random within any point of a specified arc. The platform may be permanently attached to the throwing device or attached by quick-disconnect latches, thereby allowing removal for storage. The platform may be left attached to the throwing device and not electrically activated for throwing or pitching to a fixed point.
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