Ụlọ ọrụ anyị na-eme ka ngwa a ka mma site na igwe nkwakọ ngwaahịa BD-420L/520L. Igwe a nwere ike ibupụ ihe, tụọ ihe, mechie ihe mkpuchi okpomọkụ na ịcha ya na-akpaghị aka na-enweghị ọrụ aka. Ngwa a bụ ọgbọ ọhụrụ nke ngwa nkwakọ ngwaahịa nke ndị otu nyocha na mmepe ụlọ ọrụ mepụtara n'onwe ha. Mgbe ọtụtụ afọ nke nnwale na mmezi gasịrị, ọ ghọwo ngwa nkwakọ ngwaahịa akpaka kachasị kwụsie ike ma dị irè. Igwe a nwere ike ịmepụta, kpoo ma bee ya na akpaghị aka, enwere ike itinye ya na sistemụ koodu akpaka ma ọ bụ sistemụ koodu akpaka iji mezuo nkwakọ ngwaahịa akpaka. A na-ejikarị ya eme ihe n'ọtụtụ ebe na nkwakọ ngwaahịa ikuku, ikuku a na-afụ na nke jupụtara n'ahụ nke nri nri dị iche iche, ngwaahịa soy, ngwaahịa anụ, ngwaahịa soseji, àkwá, mkpụrụ osisi na akwụkwọ nri, pikịlịk, ngwaahịa ọgwụ, ngwaahịa mmiri, ihe akụrụngwa ngwaike, akụrụngwa ahụike, wdg.