[請益] 影片中的是運用哪種機構
想請問拋球機是運用哪種機構的
跟棒球的發球機的機構不同之處在哪裡?
先在這裡謝謝大家了
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10/06 23:20, , 1F
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10/06 23:21, 2F
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10/06 23:46, , 3F
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10/24 00:39, , 6F
10/24 00:39, 6F