Kwa oyang'anira malo okongoletsa malo, zipatala, ndi zipatala padziko lonse lapansi, 'ozungulira' amaimira zambiri kuposa kukongola - ndi mwayi wopeza ndalama zambiri. Odwala amafunafuna njira zothetsera mavuto, nthawi zambiri amapeza kuti mafuta odzola m'maso ndi osakwanira komanso maopaleshoni owopsa amakhala oopsa. Monga wopanga zisankho zachipatala, mukufunikira yankho lotsimikizika lomwe limapereka mbali zitatu zofunika: chitetezo chapadera ndi ukadaulo wotsimikizira kukhutitsidwa kwa kasitomala, ma protocol okhazikika akupha gulu mosasunthika, komanso kusunga makasitomala mwamphamvu kuti apeze phindu kwanthawi yayitali.
Werengani zambiri