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1.Calculation about Device Washing Efficiency and the Extraction Efficiency of Black Liquor
设备洗涤效率与黑液提取率的计算收藏指正
2.Detailed description the principle and equipments and steps of circuitous acid wash hydraulic pipeline with four as one phosphoric acid liquor,it is very important for acid washing large hydraulic pipelines.
详细阐述液压管路四合一磷化液循环酸洗法的工作原理、所需设备和具体实施步骤 ,提出了此法对大型液压管路酸洗的重要意义收藏指正
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