<prompt> Cherechedza ndima iri pasi apa uye wozopindura mubvunzo unotevera mumutauro mumwe chete sezvinotaurwa mundima yacho: Passage: Mapping HI emissions with a radio telescope is a technique used for determining the structure of spiral galaxies. It is also used to map gravitational disruptions between galaxies. Kana mapoka maviri enyeredzi achirwisana, zvinhu zvinobviswa mumasumbu, zvichiita kuti vazivi venyeredzi vazive kuti mapoka enyeredzi ari kufamba nenzira ipi. Mubvunzo: Chii chinonzi Mapping HI?  <response>: nzira inoshandiswa pakusarudza chimiro chenyeredzi dzinotenderera 