Nhoroondo: Balancer ine nhoroondo yemakore anopfuura zana. Muna 1866, German Siemens akagadzira jenareta. Makore mana gare gare, wekuCanada, Henry Martinson, akapa patent yekuenzanisa nzira, kutanga indasitiri. Muna 1907, Dr. Franz Lawa...
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