1. E tinyere ihe nhazi ahaziri ahazi nke ebu ịgba ọgwụ n'elu ụgbọelu ahụ, nke e kewara n'ụdị atọ:
(1) Isi ihe na-ebu ibu na-egbochi oghere nhata nke nhata atọ nke ihe eji arụ ọrụ ahụ, nke a na-ejikarị eme ihe maka ebe a na-arụ ọrụ ahụ nke ọma.
(2) Elu ihe e ji eburu ntuziaka na-egbochi ọnọdụ nke ihe e ji arụ ọrụ ahụ site n'iji ogo nnwere onwe abụọ, a na-emekwa ya ka ọ bụrụ ebe dị warara ma dị ogologo.
(3) Elu ihe na-ebu ibu na-egbochi ụgbọelu nwere otu oke nnwere onwe. Iji hụ na ebe ọ dị ziri ezi, a na-emekarị ka ebe ụgbọelu ahụ dị obere dịka o kwere mee.

2. E tinyere oghere gburugburu n'ime ihe nhazi ahaziri iche nke ebu injection.
Ntụtụ ogologo na-egbochi ogo nnwere onwe anọ; ntụtụ mkpụmkpụ na-egbochi ogo nnwere onwe abụọ.
3. Ịtọ n'èzí elu cylindrical nke ihe eji etinye ihe ntụtụ ahụ nhazi ọrụ omenala
Datum nhazi bụ etiti nke okirikiri mpụta. E nwere atọ a na-ejikarị eme ihe.
Aka uwe: ịghọta ọnọdụ etiti Efere nkwado: itinye okirikiri mpụta
Blọk dị ka V: iji nweta etiti na ọnọdụ nke elu okirikiri mpụta
Oge ozi: Nọvemba-05-2021