Unverified82% confidenceFactTime unknown
指尖陀螺/旋转类的减压核心在轴承，陶瓷混合轴承旋转时长可达3-5分钟且几乎无噪音，纯钢轴承约1-2分钟且转久后会发出金属摩擦声
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
Sources
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