 Ọrụ na-agụnye na-agbakwụnye na-akwagide image ọdịda enyere; anwale na-echebekwa mmalite na mgbake ngwá ọrụ electric na nibu ule gia na naka ngwaọrụ; wetere airfield ijide usoro, dị ka mberede ókè na wires, noge mberede ọdịda ọnọdụ; na-atụ ugbo elu mmalite na mweghachi ulo oru itinye aka ma ọ bụ ọkụ na-egosi; ma na-edebe nkụ nke ụgbọelu malitere, recoveries, na gia-arụ ọrụ. 