求翻译：阀座修复后，阀座与阀瓣必须使用对研来修复，为防止密封面擦伤，注意不能使用过大的载荷取研磨，经常性的抬起阀瓣重新定位以及清洗密封表面。是什么意思？

Seat after the repair, valve seat and disc must be used on research to repair, grinding in order to prevent abrasion of the sealing surface, careful not to use too much load to take regular lift valve repositioning and clean the sealing surface.

After the repair valve seat and the valve seat and the valve must be used for mitral valve repair to R&D, in order to prevent sealing surface abrasions, note that you cannot use too much of the load from the ground, lift the flap valve re-positioning, as well as clean the sealing surface.

After the valve seat repair, the valve seat and the valve petal must use to grinds repairs, for prevented the packing surface abrades, pays attention cannot use the oversized load to take the attrition, regular lifts the valve petal to locate as well as the clean seal surface.

After valve repair, valve seat and valve research is essential to fix, to prevent the sealing surface scratches, careful not to use too much of the load taking ground, regular lifting the valve sealing surface of valve repositioning and cleaning.

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