A na-etinye jaket mkpuchi na valv? ak?r?ngwa n'ebe a na-ar?zi ihe
Iji nyochaa nke ?ma uru nchekwa ike nke Mkpuchi Ngwa?r? Jaket?, ule a na-eji "usoro nt?nyere tupu na mgbe emechara" eme ihe: N'ikwu na ?n?d? ?r? ak?r?ngwa (okpom?k? ?r?, ibu, okpom?k? gburugburu) na-agbanwe agbanwe kpamkpam, a na-eji ngwa ?r? ?kachamara d?ka sens? okpom?k? d? elu, mita ?k?, na mita ike iji nyochaa okpom?k? elu ak?r?ngwa na mfu ?k? tupu na mgbe etinyere jaket mkpuchi. Na-ewere onyonyo n'ebe a d? ka ihe at?: N'?n?d? nnwale a, mgbe valv? ak?r?ngwa enwegh? jaket mkpuchi, elu okpom?k? ha na-agbasa okpom?k? n'èzí mgbe niile, na-ebute okpom?k? ?r? ruo 120℃-200℃. Mgbe etinyere jaket mkpuchi, a kp?chiri mgbasa ike okpom?k? nke ?ma, a belatara okpom?k? gburugburu ak?r?ngwa ozugbo ruo ihe d? ka 35℃-45℃. —— Mgbe etinyere jaket mkpuchi na pa?p? na valv? ak?r?ngwa na ebe a na-ar?zi ihe, a wedara okpom?k? ah? nke ukwuu ruo ihe d? ka 40℃, na-emezu ihe ach?r? maka okpom?k? ?r? ?k?l?t? maka ak?r?ngwa ah?. Usoro mkpuchi ah? enwetala nsonaaz? d? ?r?ba ama, na-eme ka ?r? kw?siri ike nke ak?r?ngwa ah?.
