Kedu ihe bụ UCBV (Unlimited Cycle Bypass Valve)?
valvụ mgbagharị okirikiri na-akparaghị ókè bụ akụkụ nke akụkụ dị mkpirikpi nke enwere ike imeghe ma mechie ọtụtụ oge, a na-etinyekarị ya na ngwakọta akụrụngwa pụrụ iche dị ka nghazi, ngwa ngwa, na osisi mgbe a na-egwu ala, nke nwere ike imeghe ma mechie ụzọ ụzọ.
lee nkọwa