도시와 농촌간 교육양극화 실태 분석
Published in 교육사회학연구 • Jan 1, 2011
NobleIDNI0P24W90R11S91
Authors:
이두휴
Abstract
High-frequency X-ray generators are becoming the universal choice for radiographic systems. The X-ray tube voltage and its waveform are important features of an X-ray generator, and quality assurance (QA) is important, too. As a tool for engineers involved in the design and development of X-ray gene...
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