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Mmepe nke ultrasonic eruba mita
Ultrasonic flowmeter nwere ogologo akụkọ ihe mere eme nke mmepe, na ultrasonic mmiri eruba mita na-etinyere tụọ mmiri mmiri ma ọ bụ ikuku ruo ọtụtụ iri afọ.N'afọ 1928, mita mbụ ultrasonic na-asọ asọ nke mepụtara gburugburu ụwa na 1955, a na-etinye Ultrasonic flowmeter iji tụọ mmanụ ụgbọ elu na nha mmiri mmiri ...GỤKWUO -
Njikwa netwọkụ ọkpọkọ ịgbapụta dị iche ...
Netwọk ọkpọkọ drainage bụ ụzọ ndụ dị n'okpuru ala nke obodo ahụ, nke nwere àgwà nke mgbanwe mgbanwe dị ukwuu, usoro mgbagwoju anya, àgwà mmiri na-adịghị mma, na ebe nrụnye akụrụngwa na-adịghị mma.Ya mere, usoro netwọk mmiri drainage nke obodo bụ isi ihe nchekwa nchekwa nke c ...GỤKWUO
