Living organisms including humans are social when they live collectively in interacting populations, whether they are aware of it, and whether the interaction is voluntary or involuntary.
European engineers have developed a self-regulating reversible inflow control device (ICD) to maximise oil production and shut off unwanted water and gas from production wells.
EN 
CS
DE
ES
FR
HU
IT
PL
PT
РУ
SK
TR
УК
AR
中文
