2. Handling the complaint lamps after analysis including scraping and returning to customer when necessary. 处理分析过的灯，包括报废以及返回给客户（如果需要的话）。
3. There are self-cleaning devices on the disk, scraping sludge attaching on rotating axis and casing through tray rotating. 盘上装有自清洗装置，通过让圆盘旋转来刮下附着在圆盘旋转轴和外壳上的污泥。
英英解释
n.
1. (usually plural) a fragment scraped off of something and collected
2. a harsh noise made by scraping
3. a deep bow with the foot drawn backwards (indicating excessive humility)
