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roughing
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【化】 初步加工
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详细解释：
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以下为句子列表：
英文: Aluminum products with shing uniform surface was prepared by electrochemical graining process, including alkaline cleaning, 1% NaOH etching, electrochemical roughing in HCl, NaOH treating and anodizing in 5% H2SO4 etc.
中文: 摘要研究了铝材无挂灰电化学砂化处理工艺。以盐酸作为电解液的主成分，控制合适的电流密度和电解时间等工艺参数，通过6步处理，得到砂化均匀、粗糙度适中及光亮的砂面。
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英文: Considering the die-cavity roughing being a 2.5D cutting, a novel cutting force surface model is created based on orthogonal cutting tests.
中文: 鉴于模具型腔粗加工常采用2.5维加工，提出一种通过正交切削试验建立切削力曲面模型用于模具型腔粗加工进给率优选的新策略。
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英文: Generally speaking, bars of steel, forging, castings, etc. are machined to the required shape and size with only one roughing and one finishing cut.
中文: 一般地说，钢质棒料、锻件、铸件等只经一次粗切削和一次精切削即可达到所要求的形状和尺寸。
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英文: Numerical simulation signal and vibration acceleration signal of a roughing mill main drive speed reduction unit have been decomposed by using empirical mode decomposition algorithm; each component has been carried on spectral analysis.
中文: 摘要运用经验模式分解算法对数值仿真信号及某轧钢厂粗轧机主传动减速机振动加速度信号进行了分解，从而得到若干个基本模式分量，对每个模式分量进行了频谱分析。
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英文: Roughing and intermediate rolls for structure and wire mills were made of adamite steel contain-ing . ～.％C;
中文: 型钢和线材轧机的粗轧和中间机架的轧辊采用含C . ～.％;
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