| 摘要 |
<p>Elongated body has a part with two rows of calibrated holes arranged symmetrically along the body's longitudinal axis. The centres of these holes are set two by two on the same perpendicular line to the axis. The other part of the body has two measuring chamber independent of one another which extend along all its length and joined to the holes. By an aligned chamber, they each join, at their body outlet to a respective orifice which connects them to a measuring apparatus. Used to measure the flow of gaseous fluids, particularly the hot blast feeding a blast furnace's tuyeres.</p> |
