以下为句子列表：
英文: A mechanical model of conical part stamping process is built under the conditions of considering thickness variation, anisotropy, work-hardening, friction factor and so on.
中文: 摘要在综合考虑板厚变化、各向异性、加工硬化及摩擦等因素的情况下，建立了圆锥形件冲压成形过程的力学模型。
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英文: Abstract: It is emphasized on the affect of aspect ratios and friction factors on the workability,and some valuable curves are given.
中文: 文摘:重点研究了高径比与摩擦系数对可加工性能的影响，并给出了一些有价值的曲线。
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英文: As an alternative to impedance functions, one can use a friction factor lookup table (essentially a discrete impedance function) that relates the impedance between zones to the attractiveness between zones.
中文: 对于阻抗函数的选择，你可以采用摩擦系数查询表（本质上也是一个离散阻抗函数）来描述小区之间的阻抗。
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英文: Calibrating the gravity model consists of evaluating the parameters of the impedance function (or the values in the friction factor table) so that the gravity model reproduces, as closely as possible, the base year productions and/or attractions and the b
中文: 校准重力模型就是计算阻抗函数参数（或者摩阻系数表中的值），使其尽可能吻合基年产生和吸引，以及基年的出行距离分布。
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英文: General used rubber board, Outer: green; Inner : Dark green, Wearable, aging-proof, deformation-proof, oil-proof, bending-proof, strong tensile stress, dimension stability, friction factor agreeable.
中文: 普通胶板，外层：绿内层：墨绿，耐磨耗，耐老化，变形小，耐油，耐抗绕，抗张强度好，尺寸稳定，有合适的摩擦系数。
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