piston valve
短语词组
- Piston reducing valve 活塞式減壓閥;活塞昵減壓閥;活塞式降低壓力閥;活塞昵
- piston air valve 活塞式空氣閥;活塞氣閥
- piston governor valve cage 活塞調節閥座
- Inclined piston check valve 斜板活塞止廻閥
- piston type valve 柱塞閥
- piston -valve induction [機]活塞閥進氣
- load piston check valve 負荷柱塞單曏閥
- piston governor valve 活塞調節閥
- piston slide valve 活塞式滑閥;活塞滑閥 返回 piston valve