以下为句子列表：
英文: Abstract: The mechanical structure of washboard valve leveler is introduced ,The alignment mechanics of curving bar and hemilateral pan of the valve is analyzed, The mechanical ,the shape of washboard and the effect of alignment quality and efficiency cau
中文: 文摘:介绍了搓板式气门校正机的机械结构，分析了气门杆部弯曲校直和盘部偏歪校正的机理，讨论了机器结构，托板形状和气门在两搓板间的过盈配合量对校正质量和效率的影响。
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