spraying boom

例句：

1. 1. The sprayer boomis used to spray paint on the walls.
   喷水式起重机用于在墙上喷涂油漆。
2. 2. The sprayer boom has a largecapacity and can spray paint over a widearea.
   喷水式起重机容量大，可以喷涂大面积的油漆。
3. 3. Thesprayer boom is animportant tool for painting and decorating.
   喷水式起重机是绘画和装饰的重要工具。