n.空速管；皮托管
The half-tube averaging pitot tube has been successfully applied to industry. 这种新型均速管流量计已成功应用于工业现场。
The shape of the nozzles and the position of the holes give an increased pitot value and enable maximum use to be made of the available insertion time. 喷头的形状和细孔的位置提高了皮托管阀，可以最大化的利用嵌入时间。
