When the valve is open, it acts as a check valve, but the valve can be deliberately shut to stop flow.
However, he made a contradictory finding that Leach had deliberately shut his eyes.
Darcy walked into the bath, deliberately shut her eyes and leaned back on the door.
Deliberately shutting it out of mind, but knowing all along that with this humidity and wind it was more than likely.
But administration officials sympathetic to the State Department said that the department's intelligence bureau felt it had been deliberately shut out of the process.
I deliberately shut it off whenever I was with my father.
Rushing down the stone steps I found the doors of the shrine deliberately shut against me.
He knew about the boxes, knew she had deliberately shut the adults out when they tried to force her into operancy.
This is not totally unexpected," Mr. Davis said, "but we deliberately shut our eyes.
Sometimes I wonder if that isn't the disposition of God, not to hear us when we cry, to deliberately shut His ears!