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並前往https://www.researchgate.net/figure/Load-force-vs-compression-for-the-55-mm-ping-pong-ball-measured-in-the-materials-testing_fig13_262990295

Load force vs compression for the 55 mm ping pong ball ...

4. Ping pong balls have a relatively thick, internal seam joining the two halves. In Fig. 4, the seam was horizontal and the ball was compressed vertically ...

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