continuous negative pressure aspiration

例句：

1. 1.The continuous negative pressure aspiration is essential for the operation of the pump.
   连续的负压力吸引对于泵的操作至关重要。
2. 2.During the operation, the continuous negative pressure aspiration helps to maintain the stability of the fluid flow.
   在操作过程中，连续的负压力吸引有助于保持流体流动的稳定性。
3. 3.The continuous negative pressure aspiration system was designed to improve the efficiency of the extraction process.
   连续负压力吸引系统的设计旨在提高提取过程的效率。