Igwe na-ahazi ntu ntu akpaaka nke emere site na nyocha na mmepe onwe ya nwere ike iwepụta akpụrụ akpaka na akụkụ akpaka nke nwere akwụkwọ mkpochapụ.
ịtụ mbọ, na ntu ahiri angle bụ mgbanwe site na 0 ruo 34 degrees. The ntu anya nwere ike ịtụ dị ka a chọrọ, ọ nwere uru nke ezi uche imewe, adabara
arụ ọrụ, ọmarịcha prope-rties na ngwa mbụ ụlọ