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一个物体受到多个力时，什么条件下，这些力就可以都画在受力物体的重心上，什么条件下就不能移动？ 知乎 Template






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sketch 5202 The Woman by Céline Chalois
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sketch 2771 Naruto by Милен Тревата
sketch 5100 Shadow by An Nguyen
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sketch 3149 Dude with a sword by Elio Hernandez
sketch 1114 fire flame camping bonfire
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sketch 5149 Daenerys Targaryen by Jorge Valero
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tomski一个物体受到多个力时，什么条件下，这些力就可以都画在受力物体的重心上，什么条件下就不能移动？ 知乎 coloring
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一个物体受到多个力时，什么条件下，这些力就可以都画在受力物体的重心上，什么条件下就不能移动？ 知乎 sketch template
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