down-time ratio

例句：

1. 1. The company's downtime ratio is critical for maintaining its productivity.
   公司的停机时间比率对于保持其生产效率至关重要。
2. 2. In the manufacturing industry, downtime can lead to significant losses in production and revenue.
   在制造业中，停机时间可能导致生产损失和收入减少。
3. 3.To improve efficiency, the company has been working on reducing its downtime ratio.
   为了提高效率，该公司一直在努力降低其停机时间比率。