vacuum limiter

例句：

1. 1.The vacuum limiter is used to prevent air from entering the vacuum chamber during the process of cleaning.
   真空限制器用于在清洁过程中防止空气进入真空腔体。
2. 2.The vacuum limiter is crucial for maintaining the cleanliness and integrity of the vacuum system.
   真空限制器对于保持真空系统的清洁度和完整性至关重要。
3. 3. The vacuum limiter is designed to ensure that the pressure in the vacuum chamber remains constant during the operation of the vacuum pump.
   真空限制器的设计目的是确保真空泵运行过程中真空腔内的压力保持稳定。