Венесуэл 50 tph конусан бутлуур
Mongolia Screen бутлуур 865 tph . Конусан бутлуурын гаралт 150T H Charles H Townes Wikipedia Charles Hard Townes July 28 1915 January 27 2015 was an American physicist and inventor of the maser Townes worked on the theory and appliion of the maser for which he obtained the fundamental patent and other work in quantum electronics …