Connect the water pump, make sure that the water flow is smooth without leakage.
接通水泵，确保水流通畅，并无渗漏现象。
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.
磨粉过程全封闭，无粉尘泄露。
Milling process of the whole seal, without dust leakage.
磨粉过程全封闭，无粉尘泄露。
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