Vacuum motor waterproof design installation, long service life.

真空马达防水安装设计，使用寿命超长。

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Motor noise, waterproof, overheating protection function.

电机噪音小，防水，过热保护等功能。

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Motor of fan applied is special for outdoor vertical type cooling tower with the merits of high efficiency, electricity-savings, good waterproof performance etc.

风机的电机采用户外立式冷塔专用电机，具有效率高、耗电省、防水性能好等特点。

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These account for 10% of the total, including Faraday's electric motor (1821), waterproof material (1823), Aspdin's cement (1824), George Stephenson's passenger railway (1825) and the lawnmower by Edwin Beard Budding (1827).

BBC: Sir James Dyson