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Alloys and foundry alloys of rare metals. X-ray fluorescence method for determination of zirconium, molybdenum, tungsten and tantalum in niobium alloys
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Electronics automated design systems. Footprints for the components on printed circuit boards (PCB). Size and placement of pads, holes, other elements, keepout areas, drawing elements
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United power system and isolated power systems. Relay protection and automation. Distance and overcurrent protection of power lines and utilities 330 kV and above. Testing
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Measuring generators for frequency range 0,1-35 MHz. Methods and means of verification
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