I told you that the friction coefficient is independent of the mass of the object.
我讲过，摩擦系数，与物体质量无关。
The humidity could change in the room and that could change the friction coefficient.
室内的湿度会随时变化,这对摩擦系数影响很大。
The friction coefficient has little effect on deformation behavior and mechanical behavior.
摩擦系数对材料的变形行为及力学行为影响较小。
The friction coefficient has little effect on deformation behavior and mechanical behavior.
摩擦系数对材料的变形行为及力学行为影响较小。
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