NF C97-307-1996 Sound system equipment Part 7 headphones and earphones 《音响系统设备 第7部分 头带式受话器和耳机》.pdf

相关资源

JIS C5532-1994 音响系统设备用扬声器.pdf

BS 6840-13-1998 Sound system equipment - Listening tests on loudspeakers《音响系统设备 扬声器收听试验》.pdf

BS 6840-18-1996 Sound system equipment - Peak programme level meters - Guide for digital audio level meter《音响系统设备 峰值音量电平表 数字音频电平表指南》.pdf

BS 6840-2-1993 Sound system equipment - Glossary of general terms and calculation methods《音响系统设备 第2部分 通用术语和计算方法词汇》.pdf

BS EN 60268-12-1995 Sound system equipment - Application of connectors for broadcast and similar use《音响系统设备 广播及类似用途连接器的应用》.pdf

BS EN 60268-16-2011 Sound system equipment Objective rating of speech intelligibility by speech transmission index《音响系统设备 通过语言传输系统指数测定语言清晰度的客观评级》.pdf

BS EN 60268-3-2013 Sound system equipment Amplifiers《音响系统设备 放大器》.pdf

BS EN 60908-1999 Audio recording - Compact disc digital audio system《录音 光盘数字音响系统》.pdf

BS EN 62458-2011 Sound system equipment Electroacoustic transducers Measurement of large signal parameters《音响系统设备 声电变换器 大信号参数的测定》.pdf

BS EN 62459-2011 Sound system equipment Electroacoustic transducers Measurement of suspension parts《音响系统设备 电声换能器 悬挂件的测量》.pdf

猜你喜欢

EN 1380-2009 en Timber structures - Test methods - Load bearing nails screws dowels and bolts《木结构的测试方法 承重钉 螺丝 销钉和螺栓》.pdf

EN 13802-2013 en Railway applications - Suspension components - Hydraulic dampers《铁路应用设施 悬挂部件 液压减震器》.pdf

EN 13803-1-2010 en Railway applications - Track - Track alignment design parameters - Track gauges 1435 mm and wider - Part 1 Plain line《轨道交通 轨道 轨道准直设计参数 轨道轴距1435 mm及更宽 第1部分 普通线路》.pdf

EN 13803-2-2006 en Railway applications - Track - Track alignment design parameters - Track gauges 1 435 mm and wider - Part 2 Switches and crossings and comparable alignment desig.pdf

EN 13803-2017 en Railway applications - Track - Track alignment design parameters - Track gauges 1 435 mm and wider《铁路应用设施-轨道-轨道平面图设计参数-轨距规≥1435 mm》.pdf

EN 13804-2013 en Foodstuffs - Determination of elements and their chemical species - General considerations and specific requirements《食品 元素及其化学形态的测定 总则和特殊要求》.pdf

EN 13805-2014 en Foodstuffs - Determination of trace elements - Pressure digestion《食品 微量元素的判定 高压溶出》.pdf

EN 13806-2002 en Foodstuffs - Determination of trace elements - Determination of mercury by cold-vapour atomic absorption spectrometry (CVAAS) after pressure digestion《食品 痕量元素测定 加压.pdf

EN 13807-2003 Transportable gas cylinders - Battery vehicles - Design manufacture identification and testing (Incorporating Corrigendum June 2005)《食品 痕量元素测定 加压吸收 合并勘误表-2005年6月》.pdf