以下为句子列表：
英文: The properties of product: May replace copper, the Pakistan alloy and so on the nobie metal, has the fine self lubrication, the high anti-impact intensity and the bending strength, saves the spouse, the comprehensive cost low status merit, the rub proofne
中文: 产品性能：可代替铜、巴氏合金等贵重金属，具有优良的自润滑性，高耐磨性、耐腐蚀性、高抗冲击强度和弯曲强度，节省配偶件，综合成本低等优点，耐磨程度是铜的2-3倍，是铁的4-6倍。
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英文: The ring raises a method of calculating the ring involute teeth spherical gear bending strength, it resolves the problem that the calculating method of the spherical gear bending strength has been vacancy until now, and assures the spherical gear being ta
中文: 摘要提出一种渐开线环形齿球齿轮的弯曲强度计算方法，解决目前球齿轮弯曲承载能力计算方法缺乏的问题，为球齿轮应用于工程实践提供保障。
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英文: Then, in order to meet the need of relevant parameter calculating conveniently, basing on the principium of the material mechanics, the cube-parabola method in calculating bending strength parameter number is provided.
中文: 同时为适应有关参数数值计算需要，根据材料力学基本原理，提出弯曲强度参数计算中的立方抛物线法。
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