在诺基亚的圣迭戈测试中心，该公司把通过一系列物理力学试验，以确保每一个手机能够经受住现实世界的磨损。
At Nokia's San Diego test Center, the company puts every phone through a series of physical and mechanical tests to ensure it can withstand real world wear and tear.
轮胎偏磨损模型主要考虑了轮胎力学特性在胎宽方向的变化。
The tire uneven wear model considers the tire mechanics character variation in the lateral direction.
采用弹塑性有限元方法，建立了套管接头磨损拉伸与抗内压的有限元力学模型。
By using the elastoplastic finite element method, mechanical model for wear tension and internal pressure resistance of casing joints is set up.
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