device category

例句：

1. 1. The new device categoryhas been introduced to improve efficiency.
   新设备类别的引入旨在提高效率。
2. 2. The company's latest product is a high-end device category.
   该公司的最新产品属于高端设备类别。
3. 3. The classification of devices is crucialfor effective management.
   设备分类对于有效的管理至关重要。