pulsator screen

例句：

1. 1. The pulsator screen in the hospital is designed to filter out dangerous bacteria.
   医院里的脉冲筛网设计用来过滤掉危险的细菌。
2. 2.The pulsator screen was used to monitor the patient's vital signs during surgery.
   脉冲筛网被用来在手术期间监测病人的体征。
3. 3. The pulsator screen is essential for maintaining a clean environment in hospitals.
   脉冲筛网对于保持医院清洁环境至关重要。