The airlow state of pressuresystem airway is analyzed and the influence on surge is approached.
分析了某柴油机增压系统导气管内气流流动状态，初步探讨了其对喘振的影响。
2
An improved oxidation ditch process using forced air supply low-pressure jet aeration system was used to treat middle-stage wastewater from pulping and papermaking.
采用供气式低压射流曝气系统改良型氧化沟工艺处理制浆造纸中段废水，对整个调试运行过程进行了介绍。
3
Vacuum dust collection system is system of high negative pressure and lowair flow.