外置轴承型的轴承腔与泵腔用机械密封及骨架油封或填料隔开，密封性好。

The bearing bore and pump bore of external bearing type are separated by mechanical seal and skeleton oil seal.

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外置轴承型的轴承腔与泵腔用机械密封及骨架油封或填料隔开，密封性好。

The bearing bore and pump bore of external bearing type are separated by mechanical seal and skeleton oil seal.

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