vacuum engineering

例句：

1. 1. Vacuum engineering is a field that focuses on the design and construction of vacuum systems.
   真空工程学是专注于设计和建造真空系统的领域。
2. 2.In vacuum engineering, engineers must ensure that the vacuum chamber is clean and free from contaminants.
   在真空工程中，工程师必须确保真空腔体干净且无污染物。
3. 3. Vacuum engineering has numerous applications in industries such as electronics, manufacturing, and research.
   真空工程在电子、制造和研究等领域有广泛的应用。