"exhaust by" is not a grammatically correct structure in written English.
The correct phrase would be "exhausted by," which means to feel extremely tired or drained as a result of something. "Exhausted by" is typically used in a sentence to indicate the cause of one's tiredness. For example, "I was exhausted by the long hike we took yesterday."
Most easy gains -- from simply cleaning the exhaust by adding catalytic converters and other such technologies -- have already been made.
For older regulators, it is a replay of Detroit's initial resistance to those who wanted clean up car exhaust by installing catalytic converters, which pull smog-forming chemicals and carbon monoxide out of the exhaust.
The snorkel, raised while the submarine cruised just beneath the surface, permitted air intake and fume exhaust by the internal-combustion engine, so that the batteries could be recharged without the submarine having to surface.
The suggested meta-structure induced large noise reduction without influencing heat exhaust by similar open area for fluid flows as the original cover.
Results from this study indicate that capital investment for post-combustion CO2 recovery from gas turbine (GT) exhaust by monoethanolamine (MEA) can be reduced 40-55%.
The results indicated that the air supplement volume at two portals of the tunnel by multi-scale coupling method is less than the recommended value of smoke exhaust by engineering standard.
The performance of the exhaust by-pass scenario is a strong function of the carbon prices and is only selected at very low carbon prices.
The efficient all composite motorglider is an all electric prototype airplane which does not produce any of the noxious engine exhaust by-products, such as carbon dioxide, carbon monoxide or NOx, that can contribute to climate change and adversely affect local air quality.
In this study, emotional exhaustion assessed feelings of being emotionally overextended and exhausted by schoolwork.
"They were exhausted by the fourth quarter.
The deposits were exhausted by the 1920s.
