valve action मीनिंग इन हिंदी

In 1987, Markal went outside of the solid stick paint model and started producing a liquid paint marker called the Valve Action Paint Marker.
When he soon improved the device by removing the poppet valve action, these three components became the piston valve, the slide valve, and the graduating valve.
The most recent product introduction was the 2008 release of the PRO-LINE HP which was designed as a quick drying alternative to the Valve Action Paint marker.
It also has electric fuel injection, which is rare in motorcycles, and something the manufacturer calls " desmodromic " valve action, which makes the engine more efficient.
This pneumatically assisted valve action is in contrast to a direct electric action in which each pipe's valve is opened directly by an electric solenoid which is attached to the valve.