Global navigation satellite system. Regional navigation and information systems. Purpose, composition and characteristics of subsystem for monitoring and control passengers transportation on the territory of the subject of the Russian Federation
Yttrium, lanthanum, ytterbium, lutetium and their oxides. Chemical-spectral method of determination of impurities of vanadium, tungsten, iron, cobalt, manganese, copper, molybdenum, nickel, niobium, lead, tantalum, titanium and chromium
