文丘里管一种带有收敛喉管的短管，用于确定液体的压力和流速，通过在液体流经该管时测量出喉管处产生的有差别的压力来实现。
A short tube with a constricted throat used to determine fluid pressures and velocities by measurement of differential pressures generated at the throat as a fluid traverses the tube.
该方法还可包括检测文丘里管处的绝对排气压力，和检测排气温度。
The method may further include sensing an absolute exhaust pressure at the venturi, and sensing a temperature of the exhaust gases.
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