cleaning rate

例句：

1. 1. The company's cleaning rate has improved significantly since the new policy was implemented.
   自从实施了新政策，公司的清洁率已经显著提高了。
2. 2.The hospital's efficiency in patient care is measured by its cleaning rate.
   医院在患者护理方面的效率是通过其清洁率来衡量的。
3. 3.The study found that the cleaning rate of the city's public transportation system had increased by 5% over the past year.
   研究发现，过去一年里，该市公共交通系统的清洁率提高了5%。