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本文找出了采用皮托管与水柱计测点压时水柱的升降规律,并由此提出一种判别皮托管正负端和通风方式的简单方法。
This paper finds out the regularity of the water column when using pitot tube and water column to measure the pressure, and then put forward a simple method to discriminate pitot tube positive and negative end and ventilation mode.