future age

The EGR system routes a number of the exhaust gases (6 ? 10%) from the EGR valve, last on the Intake System, and ultimately within the combustion chamber. The exhaust gases are inert i.e. they cannot burn in the combustion chamber; also, the exhaust gases take up a number of the space which would preferably be taken with the intake air. This reduces the volume of intake air readily available for the combustion process during each Power Stroke; which in turn decreases the peak combustion temperatures. This brings about lower NOx emissions. From the development trend of audio products, the wire is an extremely important aspect sure to enjoy freedom of music. "Get gone the shackles of cable, using wireless method to enjoy music" could be the development direction of public expectations. In the current selection of wireless transmission protocol, 2.4G holdings are still high. Posttraumatic stress disorder (PTSD)