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第九章.零件å›&frac

第九章.零件å›&frac

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为为为为为为为为 为为为为为 ? 9. 6 为为为为为 为为为为为为为为为为为为 为为为为为为 为为为为为为为为为为为为为 为为为为为为为为为为为为为为为为为为 为为为为为为为为为为为为 为为为为为为 为为为为 为为为为 为为为为为为为 为为为 为为为 为为为 为为为为为为为为为 (φ50) 为为为为
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为为为为 : 为为为为 : 为为为为 : 为为为为为为 : 为为为为为为为为 为为为为为为≥为为为为≥为为为为为为为 为为为为为为为为为为为为为 为为为为为为为为为为为为为为为为为 为为为为为为为为为为为 为为为为为为为为为为为 为 为为为为为为为为为为为为为为 为为为为为为 : 为为为为为为为为为 为为为为为为 为为为为为为 φ 50.008 φ 50 为为为为 φ 49.992 φ 50 ± 0.008
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为为为为为为 为为为为为为 φ50.008 φ50 为为为为 φ49.992 为为为为为为为为为 为为为
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