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The EGR system routes a few of the exhaust gases (6 ? 10%) through the EGR valve, back in towards the Intake System, and ultimately within the combustion chamber. The exhaust gases are inert i.e. they do not burn in the combustion chamber; also, the exhaust gases undertake a few of the space which may preferably be taken with the intake air. This reduces the quantity of intake air available for the combustion process during each Power Stroke; which decreases the peak combustion temperatures. This results in lower NOx emissions. As you review high fashion wedding photography pictures, you will notice the picture contains only one or two people. Normally this type of artistic photograph is reserved for the bride with maybe several pictures of the groom included. As the group increases to family, friends and the bridal party, it becomes more difficult to set up and the photographer will need to revert to event photography, which carries its own set of artistic wedding poses. Accommodation on board is luxurious and passengers have three options. Each train carries only four Royal Suites which are the ultimate in opulence, style and comfort. Comprising 172 square feet they boast a private lounge, separate bedroom and an en suite bathroom fitted with a Victorian bath and shower.