The frame base is installed inside the fan frame to support the impeller.
一基座，设置于该外框内，用以承置该叶轮于其上；
The thrust bearing has ample capacity to support the weight of the shaft and impeller.
止推轴承有足够的能力支撑主轴和叶轮的重量。
The thrust bearing has ample capacity to support the weight of the shaft and impeller.
止推轴承有足够的能力支撑主轴和叶轮的重量。
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