137 / | HD | FLUID HANDLING |
803 | DF | FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM) {11} |
825 | DF | .~ Means to regulate or vary operation of device {3} |
829 | DF | .~.~ By movable element {3} |
832 | .~.~.~ Means (e.g., valve) in control input |