Pitot tube

n (propr 专利名) small tube, open at one end, used in instruments that measure fluid pressure or velocity 皮托管（用以测量流体压力或速度的管）.

pitched, pitcher, pitchfork, piteous, piteously, piteousness, pitfall, pith, pith hat (also `pith helmet), pithily, pithiness, pithy, pitiable, pitiably, pitiful, pitifully, pitiless, pitilessly, pitilessness, piton, pitta, pittance, pitter-patter, Pittsburgh, pituitary, pity, pityingly, pivot, pivotal, pixel, pixie (also pixy), pizza, pizzicato, Pk, pkg, pkt, Pl, pl of vertex., placard, placate,