短语词组短语Spray -head size 喷头尺寸Spray a head 喷头spray broom head 喷杆喷头spray -head 喷头Low pressure spray -head 低压散射式喷头mozzle spray head 多喷嘴雾状喷头pneumatic spray head 气动喷头oxygen lance spray head 氧枪喷头spray head structure 喷头结构 返回 spray head