... 风扇滑流 fan slip; 风扇激动式热风供暖 central fan heating; 风扇架 fan board; ...
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Due to their simplicity, fan coil units are more economical to install than ducted or central heating systems with air handling units.
由于其简单，安装风机盘管机组更经济比导管或中央供暖系统空气处理单元。
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