单词:ASNT (American Society of Nondestructive Testing)
单词:ASNT (American Society of Nondestructive Testing) 相关文章
AMERICAN MOSAIC -February 1, 2002: Jazz conference/Susan B. Anthony/the Super Bowl Broadcast: HOST: Welcome to AMERICAN MOSAIC — VOA’s radio magazine in Special English. (THEME) This is Doug Johns
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This is Scientific American's 60-Second Science. I'm Chirisopher Intagliata, got a minute? But mum, that's not fair! sound familiar? Even as children we hate getting gypped, whether it's fewer slices of pizza or lousy presents from Santa. More surpri
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