1. Akpa nke nwere akụkụ asatọ nwere ike iguzosi ike, nke na-eme ka ihe ngosi shelf ma na-adọta mmasị nke ndị na-azụ ahịa; n'ozuzu n'ọtụtụ ubi dị ka mkpụrụ osisi a mịrị amị, mkpụrụ osisi, anụ ụlọ mara mma, nri nri, wdg.
2. Akpa mkpuchi n'akụkụ asatọ na-anabata usoro nchịkọta ngwugwu na-agbanwe agbanwe, na ihe ndị ahụ dịgasị iche iche. Dị ka ọkpụrụkpụ nke ihe onwunwe, ihe mgbochi nke mmiri na oxygen, metal mmetụta na-ebipụta mmetụta, uru bụ maa ukwuu karịa nke otu igbe;
3. Enwere peeji asatọ e biri ebi na akpa ahụ nwere akụkụ asatọ, nwere ebe zuru oke iji kọwaa ngwaahịa ma ọ bụ ire ngwaahịa asụsụ, na-akwalite ngwaahịa ahịa zuru ụwa ọnụ maka ojiji. Ngosipụta ozi ngwaahịa zuru oke. Mee ka ndị ahịa marakwuo maka ngwaahịa gị.
4. nkà na ụzụ na-emepụta ihe na-emepụta ihe na-emepụta ike nke akpa mkpuchi nke asatọ, akpa ahụ nwere ike inyere ndị ahịa aka ịhọrọ atụmatụ nhazi ngwaahịa kachasị mma, nyere ndị ahịa aka imeziwanye àgwà ngwaahịa, chekwaa ego, ma mee ka uru ndị ahịa dịkwuo elu.
5. A na-eji akpa mkpuchi mkpuchi nke dị n'akụkụ asatọ nwere ihe eji eme ihe. Ndị ahịa nwere ike imeghe ma mechie zipa, mana igbe enweghị ike ịsọ mpi; akpa ahụ nwere ọdịdị pụrụ iche, kpachara anya maka adịgboroja, ma dị mfe maka ndị na-azụ ahịa iji chọpụta, nke na-eme ka ụlọ ọrụ mmepụta ihe; Mbipụta agba, ngwaahịa ahụ nwere ọdịdị mara mma, ma nwee mmetụta nkwado siri ike
Ụdị zipa T-dị mfe iji ma bụrụkwa nke a pụrụ iji ya mee ihe.
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