轴承里的滚珠掉不出来，它又是怎么放进去的？看完解开多年疑惑！

冷科普

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32万回視聴・ 2526いいね・ 2025/01/18

轴承里的滚珠掉不出来，它又是怎么放进去的？看完解开多年疑惑！

Finally I know how the ball of the bearing is stuffed in! What else do you know besides what is mentioned in the video?

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