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Bubata ọrụ
I. Nchapụta kọstọm: A na-eme ka usoro a dị mfe yana mkpochapụ kọstọm na-adị ngwa ngwa
1) Nleba anya n'ọdụ ụgbọ mmiri nke kọstọm na ngwa ahịa, mkpochapụ na nyocha nke ọma;
2) Ndị otu ọkachamara nyochaa na ịkwadebe akwụkwọ;
3) Ọrụ nhazi ọkwa ọkachamara.
2. Mgbanwe Mba Ọzọ: Nchekwa na ịrụ ọrụ nke ọma, mmezi ngwa ngwa
Nyere gị aka mezue mbubata nke azụmahịa mmezi mba ụwa
1) Azụmahịa mba ofesi zuru oke nke ọtụtụ ụlọ akụ na-akwado;
2) Chọpụta ugwo synchronous esenidụt, mma na ngwa ngwa.