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2. Glossary of firefighting equipment - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_firefighting...

   Water in the appliance is used to supply a flow of water to the ejector pump, which uses high pressure nozzles to entrain an increased volume of water in the hose returning to the fire appliance. Elevator key control panel override key to take elevator car to desired floor. May also refer to special tool used to open elevator shaft-protection ...

3. Injector - Wikipedia

   en.wikipedia.org/wiki/Injector

   The S type pump is useful for removing water from a well or container. Shallow well pumps are those in which the jet assembly is attached directly to the main pump and are limited to a depth of approximately 5-8m to prevent cavitation. Deep well pumps are those in which the jet is located at the bottom of the well. The maximum depth for deep ...

4. Drain-waste-vent system - Wikipedia

   en.wikipedia.org/wiki/Drain-waste-vent_system

   A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

5. Vacuum ejector - Wikipedia

   en.wikipedia.org/wiki/Vacuum_Ejector

   A vacuum ejector, or simply ejector, or aspirator, is a type of vacuum pump, which produces vacuum by means of the Venturi effect.. In an ejector, a working fluid (liquid or gaseous) flows through a jet nozzle into a tube that first narrows and then expands in cross-sectional area.

6. Chinese Salt Typhoon cyberespionage targets AT&T ... - AOL

   www.aol.com/news/chinese-salt-typhoon-cyber...

   (Reuters) -The Chinese-linked Salt Typhoon cyberespionage operation targeted AT&T and Verizon's systems, but the wireless carriers' U.S. networks are now secure as they work with law enforcement ...

7. 'Christmas gas' joke goes viral as women prank the men in ...

   www.aol.com/christmas-gas-joke-goes-viral...

   THe prank shows women telling a spouse, significant other or male family figure how they put gas in their car with the green pump, calling it "Christmas gas." "The Christmas gas," she replies ...

8. Jet aerators - Wikipedia

   en.wikipedia.org/wiki/Jet_aerators

   Jet aerators can be installed either as submersible units or piped through the tank wall using an external dry-installed chopper pump to feed the aspirating ejector(s). Jet aerators are easily configured into any basin geometry including circular, rectangular, looped reactors and sloped wall basins.

9. Nancy Pelosi undergoes hip replacement surgery after fall in ...

   www.aol.com/nancy-pelosi-hospitalized-during...

   Democratic Rep. Nancy Pelosi, 84, underwent a successful hip replacement surgery after falling while in Luxembourg with a congressional delegation, her office said Saturday. "Earlier this morning ...