a valve designed so that pressure-induced forces from the fluid being controlled oppose one another so that resistance to opening and closing the valve is negligible.
[ 1930-35 ]
a valve designed so that pressure-induced forces from the fluid being controlled oppose one another so that resistance to opening and closing the valve is negligible.
[ 1930-35 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012