中文：防尘塞，顾名思义，是一种用于防止灰尘和其他微小颗粒进入物体孔洞的设备，常见于电子产品和机械设备中。它们通常是小型的、可插入的配件，设计有各种形状和尺寸以适应不同的插孔。在手机、耳机、相机等设备上，防尘塞可以保护充电口、耳机孔等不被尘土污染，延长设备的使用寿命。使用防尘塞是一种简单而有效的保养方式。

英文：A dust plug, as the name suggests, is a device designed to prevent dust and other minute particles from entering the openings of objects, commonly found in electronic and mechanical devices. They are usually small, insertable accessories, available in various shapes and sizes to fit different sockets. On devices like smartphones, headphones, and cameras, dust plugs protect charging ports, audio jacks, etc., from dust ingress, thereby extending the lifespan of the equipment. Using dust plugs is a simple yet effective method of maintenance.