| 释义 |
ven·tu·ri
\ven.ˈtu̇rē\ noun
or venturi tube
(-s)
Usage: sometimes capitalized V
Etymology: after G. B. Venturi died 1822 Italian physicist
: a short tube that is inserted in a pipeline, that has flaring ends connected by a constricted middle section forming a throat, that depends for operation upon the fact that as the velocity of flow of a fluid increases in the throat the pressure decreases, that is used for measuring the quantity of a fluid flowing, in connection with other devices for measuring airspeed, and for producing suction especially for driving aircraft instruments by means of a branch tube joined at the throat |