What is a function of the wearing rings used in most centrifugal pumps?（）
- AAbsorb erosion of high velocity discharge stream
- BSeal pump shaft against entry of air
- CIsolate the discharge side from the suction side
- DDampen the turbulent discharge flow
问题
What is a function of the wearing ring
参考解析：
分类：船舶辅助机械题库
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