radial kpara akwa maka cylinder nkwakọ ngwaahịa imewe nke ụdị nkwakọ ngwaahịa igwe a na-ejikarị na otu cylinder ma ọ bụ multiple cylinder efere obosara nke ihe n'elu wrapping ngwugwu, na Mkpa ọkụ na arọ ngwaahịa na ọdabara, nwere mmetụta nke uzuzu uzuzu, mmiri mmiri, nhicha.