dust-proofing seal

例句：

1. 1. The company uses a dustproofing seal to protect its machinery from dust.
   该公司使用一种防尘密封来保护其机械免受灰尘的侵害。
2. 2.This new product features a dustproofing seal that prevents dust from entering the device.
   这款新产品采用了一种防尘密封，以防止灰尘进入设备。
3. 3. The engineers worked tirelessly to ensure that the dustproofing seal was installed correctly.
   工程师们不辞辛劳地工作，以确保防尘密封被正确安装。