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Ehia mau kilomita e hoʻololi ai i ka hoʻokele kaʻa

Lawe mau (puiahuhu)

E hoʻomohala i nā bearings roller durability kiʻekiʻe e hoʻomaikaʻi mau i ka hana o nā bearings gearbox wind turbine

Pehea e koho ai i kahi bearing?