The stress and the friction coefficient of band during the engraving process were researched, and the resistance of this special structure was calculated.

研究了埋头弹火炮弹带挤进时的流动应力和摩擦系数，针对其特殊结构数值计算了挤进阻力，分析了挤进过程对内弹道性能的影响。

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Diamond has many characters, such as high thermal, low permittivity, high band gap, super high hardness, low friction etc, which makes it possible to be widely used in industry.

金刚石具有高导热率、低介电系数、高禁带宽度、超高硬度、低摩擦系数等性质，在国民经济的许多部门得到了广泛的应用。

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The project was shelved amid Wilson's punishing work schedule, inter-band bickering and friction between the group and their label.

BBC: Brian Wilson