但其控制方式的选用应遵循经济、合理、可靠的原则，可根据其用途的不同，采用两种不同的控制和防干磨擦保护的方式。
The selection of its control mode should follow the economy, fair and reliable principle and two different modes of control and dry running protection are applied for different uses.
油墨擦花：具研磨剂的纸，通常是无光粉纸，当它面上的油墨未干而与另一张纸磨擦所造成的擦拭花情况。
Ink rub: Smears of ink caused when the surface of an abrasive paper, often matt art, rubs against the ink film before it is completely dry.
用途：本产品为新型造纸抗水剂，它能大幅改善涂布纸的湿磨擦及干、湿拔等印刷性，能与合成粘合剂、变性淀粉、 CMC 反应而产生高度的抗水性。
Use: This product is new type water-repellent for paper making. It can greatly improve the printing properties of coating paper such as wet grinding.
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