以下为句子列表：
英文: Pinholes are the defects often found in cam surface layer after re-melted and chilled.
中文: 凸轮面针孔是凸轮轴重熔淬火工艺容易产生的质量问题。
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英文: Uniform micro-structure, compacted grain: melting iron is solidified by heavy spin force at right temperature, which effectively avoid the failures like blowhole, slag enclosure, pinholes and etc.
中文: 组织均匀，晶粒致密：温度精确的合金溶液在上百倍的离心重力作用下凝固成型，得到致密的组织；并有效克服了气孔、夹渣、疏松等缺陷。
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英文: Study on Generating Pinholes of Pin Gear Housing Using Circular Tooth Slotter
中文: 用圆弧齿插刀展成针轮销孔的几个技术问题
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