knapsack sprayer meaning in English

背包式喷雾器
背负式喷粉机
背负式喷雾器
背负式喷务器

Research on the knapsack sprayer duster model scuta 3wf
2型背负式喷雾喷粉机的研制
Specification for lever operated knapsack sprayers
手柄操纵背式喷雾器规范
Specification for compression knapsack sprayers
背包式压缩喷雾器规范
Equipment for crop protection - knapsack sprayers - performance limits
植保设备.背负式喷雾器.性能限制
Equipment for crop protection - knapsack sprayers - requirements and test methods
植保设备.背负式喷雾器.要求和试验方法