排除：放松填料，疏通引水槽；拆开泵体清除杂物、除锈；拆下泵轴校正或更换新的泵轴。
Ruled out: relax fill, dredge flume; disassemble pump body to remove debris, rust; Calibration shaft removed or replaced a new shaft.
排除：放松填料，疏通引水槽；拆开泵体清除杂物、除锈；拆下泵轴校正或更换新的泵轴。
Ruled out: relax fill, dredge flume; disassemble pump body to remove debris, rust; Calibration shaft removed or replaced a new shaft.
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