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What kind of curvature (geometry of space) does the universe have if it is closed?
Discharge Valves
Components in a system that allow for the controlled release of substances (gas, liquid, etc.) from a pressure vessel or system.
Rings Passing
A condition in an engine when the piston rings do not properly seal, allowing oil or fuel to pass into the combustion chamber.
Audible Air Leak
A situation where air is escaping from a pneumatic system, such as brakes or suspension, identified by a sound indicating a potential malfunction.
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