gas ballast vacuum pump

例句：

1. 1. The gas balancevacuum pump is used to remove air from the system.
   气体平衡真空泵用于从系统中去除空气。
2. 2. The gas balance vacuum pump is essential for maintaining the proper pressure in the system.
   气体平衡真空泵对于维持系统内适当的压力至关重要。
3. 3. The gas balance vacuum pump is used to maintain a stable pressure in the system.
   气体平衡真空泵用于保持系统内稳定的压力。