The contact-type mechanical seal is used in the final drive of the infantry combat vehicle.

步兵战车侧减速器的密封，采用的是接触式机械密封型式。

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The contact-type mechanical seal is used in the final drive of the infantry combat vehicle.

步兵战车侧减速器的密封，采用的是接触式机械密封型式。

youdao