Gbaa mbọ hụ na ojiji na-eji Cylinders dollar na-eme ka ihe ndị nwere ike nchekwa.
Ndị cylinderslọ ọrụ mmepụta ihe bụ ụdị nchekwa mmanụ na-egbu egbu na-eji na osisi cylinder like na ebe a chọrọ mmanụ nnukwu.
