adjustable nozzle meaning in English

可调喷管
可调喷嘴
可调式水枪

Technical specification for integral pouring concrete filter floor and adjustable nozzle of air - water washing filter
气水冲洗滤池整体浇筑滤板可调式滤头技术规程
Washing gun with steel cup and adjustable nozzle for spraying water or cleaning agent or also for dusting plants with insecticide
带不锈钢杯和可调喷嘴，适用于喷水或清洗剂，也用于给植物喷杀虫剂。