以下为句子列表：
英文: Abstract: In this paper,a kind of technological scheme for one-step precision forging spur gear with large module is put forward by using positive friction role.Experiment,in which commercial pure lead is taken as test material,is done in the special die
中文: 文摘:针对大模数直齿圆柱齿轮，提出了利用积极摩擦一步成形的工艺方案，并用工业纯铅作为试验材料，在设计的专用模具上进行试验，记录了力——行程曲线，结果表明：利用积极摩擦作用能够有效地保证直齿圆柱齿轮精锻时齿腔充满，但同时增加了变形力。
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英文: Abstract: In this paper,the kinematically admissible velocity fields are established by using the metal flow patterns based on the experiments,and the configuration dimensions of billet and the curves of Load-stroke in precision forging process for spur g
中文: 文摘:本文利用有实验根据的变形流动模式建立动可容速度场，利用上限法模拟用实心坯料精锻直齿圆柱齿轮时坯料的外形尺寸变化和力—行程曲线，所得结果与实验测定值很一致，可供冲挤精锻工艺设计参考。
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英文: Both domestic and world-wide state of the study on precision forging spur gears from the theoretical calculation study to technology design, control of precision and quality have been expounded with discussion about its developing trend.
中文: 摘要文章从理论研究、工艺设计、质量和精度控制研究等几个方面论述了国内外直齿圆柱齿轮精锻技术的现状，并对其研究发展趋势进行了探讨。
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英文: In the morning of July 15, 2005, Korea foreign owned enterprise—Sun Precision Forging (Yantai) Co., Ltd. held completion ceremony in Yantai export processing zone.
中文: 2005年7月15日上午，韩国独资企业——太阳精密锻造(烟台)有限公司在烟台出口加工区举行了竣工仪式。
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英文: The research trend in precision forging is also discussed finally.
中文: 最后探讨了精锻技术的研究动态。
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