1) secondary control valve group
![点击朗读](/dictall/images/read.gif)
二次控制阀组件
2) secondary control valve group location
![点击朗读](/dictall/images/read.gif)
二次控制阀组件配置
3) secondary control valve
![点击朗读](/dictall/images/read.gif)
二次控制阀
4) control valve group
![点击朗读](/dictall/images/read.gif)
控制阀组件
5) four valve control valve group
![点击朗读](/dictall/images/read.gif)
四阀控制阀组件
6) secondary air control valve
![点击朗读](/dictall/images/read.gif)
二次空气控制阀
参考词条