Kare, machaja mazhinji ebhatiri aigadzirwa nepurasitiki, iyo yakaderera mumutengo pane simbi uye inogona kuderedza zvakanyanya mutengo wechigadzirwa.Nekudaro, zvinhu zvepurasitiki zvinewo zvakawanda zvakaipira: kusasimba kusimba, nyore kukanganiswa nekunze kwezvakatipoteredza uye kuchembera, deformation ...
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