english: They have to drill holes in the ice, dive down into the water -- cold, cold water -- to get hold of the instrument, bring it up, do any repairs and maintenance that they need to do, put it back and get out before the ice melts.
non_english: Moraju da izbuše rupe u ledu, da zarone u vodu -- veoma hladnu vodu -- da bi uzeli instrument i doneli ga na površinu, da obave sve popravke i održavanja koja moraju da urade, da ga vrate nazad i odu pre nego se led istopi.