Objective To determine the average articular contact area between the sacrum and ilium at the sacroiliac joint using computer analysis.
目的分析骶髂关节在不同脱位情况下耳状关节面接触面积的变化。
Reduction of contact area between cohesive soil and the surface of dredging tools is able to decrease soil adhesion and cutting resistance.
降低粘性土壤对刀齿表面接触面积可以减小土壤对刀齿的粘附和降低刀齿切削土壤的阻力。
The invention increases the contact area between the football and the shoe surface, increases the friction and has an adaptive and flexible wearing.
本发明提高了球和鞋表的接触面积，增加了摩擦力，穿着具有较好的适应性和弹性。
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