Dzimbiri la lever logwiritsira ntchito ndowe limachepetsa chitetezo ndikugwiranso ntchito mwachidule.
Buku lever block ndi mtundu wa lever block yomwe ndi yosavuta kugwiritsa ntchito komanso kunyamula.
Mwachitsanzo, taganizirani winch wamphamvu waku Japan. Zimadalira kusinthana kwadzidzidzi kuti zizindikire zokhazokha zodziyimira pazanja, ndipo mabulekiwo amangotenga njira ziwiri zokhazikitsira, zomwe sizingayambitse mkono wamagule popanda kubera, chifukwa chake timayambitsa Makina awiri otsekera. Makina awiri otsekera amapangidwa ndi chokulungira chapadera kuti asunge zowonjezera zowongolera ndi mbale yathu yapadera yolumikizira zingwe kuti tiwonetsetse chitetezo ndi kukhazikika.
Kusankhidwa kwa ma slings kuyenera kukhala kogwirizana ndi mitundu yazinthu zoti zichotsedwe, momwe zachilengedwe zilili ndi zofunikira zina.
Zofunikira kuti magwiridwe antchito achuluke bwino
Zomangira ndizofalitsa zapadera zokweza zinthu zomalizidwa. Njira zosiyanasiyana zopangira mphamvu zamagawidwe zitha kugawidwa m'magulu atatu: zomata zoyimilira, zomangirira ndi zomata zina zosunthika.