Ngwa:Maka cylinders nke nnukwu mmiri mmiri, anyị na-akwado iji plastik cylinder mee ka ọ dị mfe iji aka na-ebu cylinders. Okpu valvụ rọba na tubes dip dịkwa maka nchekwa.
Mmepụta akpaaka:Igwe a na-akpụzi akpaka anyị nwere ike ikwe nkwa ire ụtọ nke interface cylinder, si otú a na-abawanye ọkwa nchekwa. Nhazi ngwa ngwa na-arụ ọrụ nke ọma na nhazi usoro na-enyere anyị aka inwe ma ikike mmepụta na oge dị mkpirikpi maka mmepụta.
Nhazi nha:Anyị nwere ike rụpụta ngwaahịa nke nha ahaziri ahazi, ọ bụrụhaala na ọ dabara oke asambodo anyị. Biko nye nkọwapụta ka anyị wee nwee ike nyochaa ma nye eserese nka.