pitot tube
/ˈpiːtəʊ/(亦作pitot)
noun
1- an open-ended right-angled tube pointing in opposition to the flow of a fluid and used to measure pressure（用于测定流体压力的）皮托管, 全压管。
1.1
- （亦作pitot-static tube, pitot head）a device consisting of a pitot tube inside or adjacent to a parallel tube closed at the end but with holes along its length, the pressure difference between them being a measure of the relative velocity of the fluid, or the airspeed of an aircraft（用于测定流体速度或飞机速度的）全静压管。
词源
late 19th cent.: named after Henri Pitot （1695-1771）， French physicist.