显影盒，处理盒，成像装置和滑动密封元件。
Developing cartridge, process cartridge, image forming device, and sliding sealing element.
适用于滑动部件和密封件，但不适合负荷轴承。
Used for sliding parts and seals but not load-carrying bearings.
工业水处理冷却发电机和封水增加的涡轮轴滑动在水力发电站的密封圈使用寿命过滤。
Treatment of industrial water for cooling generators and filtration of sealing water to increase the service life of the turbine shaft sliding-ring seals in hydroelectric power stations.
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