Egwuregwu ụmụaka

Dị ka ọkachamara na-ebubata ihe, anyị na-enye ọtụtụ ihe egwuregwu ndị China na-ere ahịa, site na ihe ụmụaka ji egwuri egwu eletrik, ihe ụmụaka ji amụ ihe na ihe egwuregwu ndị ọzọ.