Aircraft use pitot tubes to measure airspeed.

飞机使用空速管测量飞行速度。

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Aiming at investigating how the air horn and mounting angle affect a Pitot tube measurement, experiments were carried out on various Pitot tubes.

针对不同型号的皮托管进行了较系统的试验，旨在研究检测杆和安装角对皮托管测量的影响。

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Experiments and numerical simulations were conducted on various Pitot tubes in order to study the effect of the geometrical parameters on their measurement characteristics.

为了讨论皮托管全压孔和静压孔几何参数对其测量特性的影响，采用试验和数值模拟相结合的方法，对不同型号的皮托管进行了研究。

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The icing-up of the pitot tubes was "a phenomenon that was known but misunderstood by the aviation community at the time of the accident, " the report pointed out.

CNN: STORY HIGHLIGHTS