Based on study of punching process requirements and processing sequence,the polychromatic sets theory was applied to construct the mathematical model of punching process planning.是什么意思_Based on study of punching process requirements and processing sequence,the polychromatic sets theory was applied to construct the mathematical model of punching process planning.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句