A robust well trajectory planning and drilling or completion planning system that integrates well trajectory optimization and well development planning optimization so that optimized solutions are generated simultaneously. If the size of encoded frames differ from the desired size, quantization is adjusted to produce encoded frames closer in size to the desired size. The image forming apparatus further includes a first locking mechanism locking the receiving tray so as to prevent the receiving tray from being drawn out from the main body of the apparatus until the LED unit is retracted to the retracted position. Therefore, the water cooling fan with multiple air outlets of this invention is excellent in heat dissipation speed and cooling effect, able to enhance efficiency of mechanical equipment in factory and efficacy of energy saving. Each policy process selects an available subnet from available network addresses. where n represents an integer of 0 to 2.