effective printing rate

例句：

1. 1. The company's effective printing rate has improved significantly since the new printer was introduced.
   自从引进了新的打印机，公司的有效印刷率有显著提高。
2. 2.To increase productivity, we need to improve our effective printing rate.
   为了提高效率，我们需要改进我们的有效印刷率。
3. 3. The manager explained that the effective printing rate had been reduced due to a lack of resources.
   经理解释说，由于缺乏资源，有效印刷率已经降低。