sheet control

例句：

1. 1. The hotel provided a comfortable bed with proper sheet control.
   酒店提供了一张舒适的床，床单控制得当。
2. 2. The nurse carefully adjusted the sheet control on the patient's bed.
   护士小心翼翼地调整了病人床上的床单控制。
3. 3. The new policy aims to improve the sheet control system in hospitals.
   新政策旨在改进医院中的床单控制系统。