对本地资源的需求压力
pressure of demand on domestic resources
裂土器阀信号压力需求
ripper valve signal pressure requirement
转向控制阀压力需求
steering control valve pressure requirement
自力式压力调节阀
self-operated pressure regulator
Electric control valve
农业装备需求
agriculture equipment demand
武器装备需求分析
analysis of weapon equipment requirements
武器装备需求论证
equipment requirement demonstration
装备需求工程
equipment demand engineering
equipment requirement engineering
装备需求工作
equipment demand activity