any substance used to slow down neutrons in nuclear reactors krzyżówka

Ocenia komentarze na stronach internetowych www Urządzenie do ściszania dźwięków w fortepianach i pianinach Spowalniacz substancja służąca do zmniejszenia energii kinetycznej (prędkości) neutronów, aż do osiągnięcia przez nie stanu tzw. neutronów termicznych. Tłumik Może usunąć komentarz lub zablokować konto uczestnika forum internetowego Urządzenie do przyciszania dźwięku w pianinie Osoba oceniająca komentarze i wpisy na stronie www, forum internetowym Do przyciszania dźwięku w pianinie

the pelt of a leopard any of various resins or oleoresins essential oil or perfume obtained from flowers a hard copal derived from an African tree any of various fragrant oleoresins used in medicines and perfumes a colloidal extract of algae; used especially in culture media and as a gelling agent in foods any culture medium that uses agar as the gelling agent any of various dark heavy viscid substances obtained as a residue a mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings a hydrocarbon radical (C4H9) a mineral that contains metal that is valuable enough to be mined a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium (physics and chemistry) the smallest component of an element having the chemical properties of the element any of a class of composite plastics used to make car bodies and cases for computers and other appliances (nontechnical usage) a tiny piece of anything state of disgrace resulting from detestable behavior special emphasis attached to something; "the stress was more on accuracy than on speed" the state of being connected; "the connection between church and state is inescapable" a state of depression; "he had a bad case of the blues"