您要查找的是不是：
- gas ballast pump = vented-exhaust mechanical pump 载气真空泵
- gas ballast pump 载气泵
- rotary gas ballast pump 回转载气泵
- The__ maintains the ballast pumps. （三管轮）维修压载泵。
- gas ballast roughing-holding pump 气镇粗抽泵
- Can cargo and ballast pumps be controlled from the CCR? 货泵和压载泵能否在货控室控制?
- Are casings of ballast pumps fitted with high temperature alarms? 压载泵外壳是否装有高温报警器?
- The series H rotary piston vacuum pump is a sort of vacuum production eauipment suitable for pumping ordinary gases and conde nsable gases (when a gas ballast used). 一、H型系列滑阀式机械真空泵是抽除一般性气体或含有少量可凝性气体（此时应使用气镇）的真空获得设备之一。
- It widely serves as fresh water and seawater cooling pump, burr pump, ballast pump and general pump, and used for seawater desalting device and marine pressure cabinet. 广泛应用于淡水和海水冷却泵、舱底泵、压载泵、消防泵、日常总用泵等。
- They are F.O. pumps, ballast pumps, fresh water pumps, sea water pumps, and bilge pumps. 它们是燃油泵，润滑油泵，压载水泵，淡水泵，海水泵，和舭部液舱泵等。
- They are F.O. pumps, L.O. pumps, ballast pumps, fresh water pumps, sea water pumps, and bilge pumps. 它们是燃油泵，润滑油泵，压载水泵，淡水泵，海水泵，和舭部液舱泵等。
- Cargo and ballast pump speed control system 货油及压载泵转速控制系统
- vented-exhaust mechanical pump =gas ballast pump 压载水泵
- I'll refill my cigarette lighter with gas. 我将给打火机再灌满汽油。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- We are well served with gas in this town. 这个城镇煤气供应得很好。
- CARGO AND BALLAST PUMPING SYSTEMS 货物和压载泵系统
- He cooks his meal with a gas stove. 他用煤气炉做饭。
- Don't forget to drop by at the gas station. 别忘了到煤气站去看看。
- I was given gas when they pulled my tooth out. 给我拔牙时用了一氧化二氮。
