standardized unit of measure of erythemal radiation, ultraviolettkiirguse poolt tekitava erüteemkiirguse mõõtühik

the economic association of over two dozen European countries which seek to create a unified, barrier-free market for products and services throughout the continent, as well as a common currency with a unified authority over that currency, Union established under the Treaty on European Union (Maastricht, 1992) "to organise, in a manner demonstrating consistency and solidarity, relations between the Member States and between their peoples", ainulaadne majanduslik ja poliitiline liit 28 Euroopa riigi vahel, mis üheskoos hõlmavad suurema osa sellest maailmajaost