Motor upper and lower guide bearing wear limit, to replace the bearings, rotor shaft eccentric wear limit, to replace bushings;

电机上下导轴承磨损极限，要更换轴承； 转子上下轴套偏磨极限，要更换轴套；

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In the last treatment, it was discovered that the problem was caused by loose rotor pole that led to augmented shaft swing and bigger clearance of lower guide bearing.

在最后的一次处理中找出机架振动大的根源就是转子磁极松动，导致大轴的摆度加大，下导间隙变大，从而引致机架振动不断增大。

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A second guide seat is provided with a second guide channel and an upper guide surface as well as a lower guide surface.

第二导向座上设有第二导槽和上导引面和下导引面。

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If the past is any guide, it should o lower unless political uprisings in the Middle East cause speculation to intensify on the fear of supply constraints.

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Without a turnaround here, this company could be headed lower, especially if the recent analyst revision picture is any guide.

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Moreover, if the past few months are a guide, the actual number of jobs created in July may be even lower than the figure released this week: also on Friday, the Labour Department revised its job-growth numbers for May and June down by a combined 61, 000.

ECONOMIST: Bush's jobs deficit | The