valve cover
短语词组
- valve box cover 阀箱盖;船用阀箱;阀箱
- supply valve access cover 供油阀检视盖
- relief valve access cover 安全阀检视盖
- supplementary valve upper cover 辅助阀上盖
- release valve lower cover 缓解阀下盖
- valve e cover 阀罩;阀盖
- valve mechanism cover group 气门机构罩盖组
- emergency valve lower cover 紧急阀下盖
- valve chamber cover 气门室盖;摇臂 返回 valve cover