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提出了采用静压差测定主扇风量的原理、方法，在此基础上，研制了可连续、自动对主扇风量、风压进行检测的仪器
The principle and method of using the static pressure difference to measure the main fan air volume are put forward. On the basis of this, an instrument that can detect the air volume and pressure of the main fan continuously and automatically is developed