单体式喷油器燃油系统
unit injector fuel system
喷油器喷油试验器组件
injector pop tester group
喷油器喷油正时检查
injector fuel timing check
特殊用途的燃油喷油器压力检查
sa fuel injector pressure check
液压调速器燃油喷油泵
hydraulic governor fuel injection pump
液压调速式燃油喷油器
hydraulic governed fuel injection