Alloy mgbasa nke Fe-Ni na-achịkwa
Ndakọrịta okpomọkụ dị mma nke ọma na seramiiki na iko siri ike
Ike mkpuchi hermetic dị elu
Ike igwe kwụsiri ike n'ofe oke okpomọkụ ọrụ
Ịrụ ọrụ nke ọma na ime ka ọ dị ọcha
Enyere ya na mkpara, waya, mpempe akwụkwọ, ụdị ahaziri ahazi
Ihe mkpuchi iko-na-metal
Ihe mkpuchi seramiiki-na-metal
Ntọala nkwakọ ngwaahịa semiconductor
Relays, sensọ, ọkpọkọ eletrọniki
Akụkụ ụgbọelu na nchekwa
Ngwaọrụ eletrọniki vacuum
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