| 摘要 |
A protective screen for use with a pitching machine. The pitching machine for pitching balls. The protective screen having a passageway defined there-through for permitting a ball to be pitched by the pitching machine there-through. The protective screen having a door configured for opening and closing in concert with the pitching of balls so as to open to permit a ball to be pitched there-through but automatically closed right there-behind to protect the operator of the pitching machine from injury due to a batted ball.
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