Russian studies is an interdisciplinary field crossing history and language studies. It is closely related to Soviet and Communist studies and many times is included under Slavic studies.
Providing sufficient water for a growing population is one of the greatest challenges of our times. One solution is to recapture water lost through evaporation during many industrial processes.
EN 
CS
DE
ES
FR
HU
IT
PL
PT
РУ
SK
TR
УК
AR
中文
