51879| 92
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正負公差都是負數,如何理解? |
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點評
樓主不是學機械的吧
不合理?見過這樣的嗎?5+0.1/+0.2
雷倒了,樓主不是學機械的吧
唉唉唉唉唉這是搞機械的么
不扎實了~~
out了
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