Ngwa
Micro moto, ngwa ndọta na-adịgide adịgide, ụlọ ọrụ eletrọnịkị, ụlọ ọrụ ụgbọ ala, ụlọ ọrụ petrochemical, magnetik nukliangwaọrụ resonance, ihe mmetụta, akụrụngwa ọdịyo, sistemu nkwusioru magnetik, usoro nnyefe magnetik, akụrụngwa ọgwụgwọ magnetik