floor contamination indicator

例句：

1. 1. The floor contamination indicator isa crucial tool for monitoring indoor air quality.
   地板污染指示器是监测室内空气质量的关键工具。
2. 2. The health department has set strict standardsfor the floor contamination indicator inpublic spaces.
   卫生部门对公共场所的地板污染指示器设定了严格的标准。
3. 3. The newfloor contamination indicator system will helpreduce the spread of infectious diseases in hospitals.
   新的地板污染指示系统将有助于减少医院内传染病的传播。