dust-proof switchgear

例句：

1. 1. The new dust-proof switchgear has greatly improved the reliability of our equipment.
   新的防尘开关装置大大提高了我们设备的可靠性。
2. 2.The engineers designed a dust-proof switchgear to protect the delicate electronic components from dust and dirt.
   工程师们设计了一种防尘开关装置，以保护这些敏感的电子组件免受灰尘和污垢的侵害。
3. 3.The company's latest product is a dust-proof switchgear that can withstand harsh environments without compromising performance.
   该公司的最新产品是一种防尘开关装置，能够在恶劣环境中正常工作而不受影响。