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Laban Dictionary trên mobile

  • noun
    plural valves
    [count] a mechanical device that controls the flow of liquid, gas, etc., by opening and closing
    They turned off the main water valve to the house.
    a device in some musical instruments (such as trumpets) that you press to play different notes - see picture at plumbing
    medical :a structure in the heart, stomach, etc., that temporarily stops the flow of fluid or that allows fluid to move in one direction only
    a heart valve
    Brit :vacuum tube