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What's more, when a vibration test was performed in this condition, no loosening occurred, indicating that a self-locking effect is present even if the nut is not fully tightened.
更重要的是，在这种情况下进行振动测试，螺母没有出现松脱现象。这表明即使螺母没有完全扭紧，其自锁效果仍然存在。
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