Russian ⇄ English

туннель во льду придонной части ледникового языка, по которому идёт сток талых вод, возникающих от подлёдного таяния stresses
Makarov.	wide vaulted opening at the lower part of a glacier tongue out of which melt water, derived from subglacial melting; wide vaulted opening at the lower part of a glacier tongue out of which melt water, derived from subglacial melting, flows