Hard floor surfaces should be cleaned with wet vacuum systems. They leave the surface almost dry, reducing the risk of occupational health and safety hazard from wet floors.
英
美
释义
硬的地面应以湿用式吸尘器清洁,因为它使地面接近乾透,减低因地面潮湿构成职业安全及健康危害的机会。
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