QOS

例句：

1. 1. The QOS of the new product has been greatly improved.
   新产品的QOS得到了极大的提升。
2. 2. The company's QOS is rated as one of the best in the industry.
   该公司的QOS被评为行业内最好的之一。
3. 3. The QOS of the service is crucial for customer satisfaction.
   服务质量对于客户满意度至关重要。