adjust both axle in concentricity
...面加纸垫调整 Fit paper spacer to the bearing cover and adjust it 调整泵与电机的同心度 Adjust both axle in concentricity 填料压得过紧 Press the packing too tight ..
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adjust both axle in concentricity
调整两轴同心度
以上为机器翻译结果，长、整句建议使用 人工翻译 。