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    • ◎ 房屋設施維保
    • House facility maintenance
    • ◎ 高空管網清潔
    • High alttude pipeline network cleaning
    • ◎ 動力站運行維護
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    • ◎ 配電站運行維護
    • Distribution station operation maintenance
    • ◎ 中央空調運行維護
    • Central air-conditioning operation maintenance
    • ◎ 環保系統維護
    • Environmental protection system maintenance
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