Mutha kupachika zoyambira ndi dzanja lanu, nyundo, mphira kapena zida zina zapadera ngati choyimitsa / dalaivala.
Malangizo oyika (1)
Pamene nthaka yalimba imatha kupindika zokhazikika poziika ndi dzanja lanu kapena kumenyetsa, Bowolani zibowo zoyambira zokhala ndi misomali zazitali zachitsulo zomwe zingachepetse kuyikikako.
Malangizo oyika (2)
Mukhoza kusankha malata ngati simukufuna kuti achite dzimbiri posachedwapa, kapena chitsulo chakuda cha carbon chopanda dzimbiri choteteza dothi kuti chigwire kwambiri ndi nthaka, kuonjezera mphamvu yogwira.