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2009年5月28—31日,“第十八届中国国际专业灯光·音响·乐器及技术展览会”(PALM EXPO2009)在北京中国际展览中心和全国农业展览馆成功
May 28-31, 2009, “The 18th China International Professional Exhibition of Light, Sound, Musical Instruments and Technology” (PALM EXPO2009) was successfully held in Beijing China International Exhibition Center and National Agricultural Exhibition Center