Makina odyetsera nkhumba ndi nkhuku
Dongosolo lodyetserako lodziwikiratu limasindikizidwa bwino ndipo limapangidwa ndi silo, makina oyendetsa, silinda ya metering, ndi modyera chakudya ndi zina zotero.Imawongolera kayendetsedwe kabwino ka famu yonse, imachepetsa matenda ophatikizika ndikuzindikira kukhazikika kwazinthu zopanga.