Tsogolo lafika, ndipo anthu ayandikira pang'onopang'ono gulu lobiriwira komanso lopanda mpweya. Zinthu zosowa zapadziko lapansi zimagwira ntchito yofunikira pakupangira mphamvu zamagetsi, magalimoto amagetsi atsopano, maloboti anzeru, kugwiritsa ntchito haidrojeni, kuyatsa kopulumutsa mphamvu, komanso kuyeretsa utsi. Rare Earth ndi gulu ...
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