From Wikipedia Airbus A330 page.
To overcome the standard A330's nose-down body angle on the ground, the A330F will make use of a revised nose landing gear layout. The same leg will be used, however it will be attached lower in the fuselage, requiring a distinctive blister fairing on the nose to accommodate the retracted nosegear.
Photo © Terence Li
Also why are the going to do that with the nose gear on the A330F why not just lengthen the nose gear, instead of lowering the nose gear assembly in the aircraft and creating that horrible looking hump.