filter pocket

例句：

1. 1. This filter pocket is perfect for holding my phone while I'm on the go.
   这个滤波器口袋非常适合我出门时携带手机。
2. 2.The filter pocket in the camera is designed to keep dust and debris out.
   相机中的滤波器口袋设计用来防止灰尘和杂物进入。
3. 3.She carried her laptop in a filter pocket to avoid scratches during travel.
   她带着笔记本电脑用滤波器口袋旅行，以避免刮伤。