3682| 6
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一根偏心軸的轉(zhuǎn)動(dòng)問(wèn)題 |
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點(diǎn)評(píng)
見(jiàn) 5樓
真的不明白,。。,。這個(gè)急轉(zhuǎn)彎,,正使勁兒想著呢:啥時(shí)候啥玩意兒回轉(zhuǎn)360度后不回原位。,。,。
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點(diǎn)評(píng)
能具體點(diǎn)嗎
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點(diǎn)評(píng)
君子舉一反三。
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