Pump actual work process, their internal leakage there is, also known as slippage.
泵实际工作过程中，其内部存在泄漏，也称滑移量。
Milling process of the whole seal, without dust leakage.
磨粉过程全封闭，无粉尘泄露。
Milling process of the whole seal, without dust leakage.
磨粉过程全密封，无粉尘泄露。
Milling process of the whole seal, without dust leakage.
磨粉过程全密封，无粉尘泄露。
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