NBN S 01-008-1975 6250 Field measurement of impact sound transmission《声学 自然环境中撞击声音的传播的测量》.pdf

相关资源

JIS C0113-1996 环境条件的分类.第2部分自然环境条件.降雨和风.pdf

JB T 4160-2013 电工产品热带自然环境条件.pdf

JB T 4160-1999 电工产品热带自然环境条件.pdf

JB 4160-1985 电工产品的热带自然环境条件.pdf

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GB 4797.3-1986 电工电子产品自然环境条件 生物.pdf

GB 4797.4-1989 电工电子产品自然环境条件 太阳辐射与温度.pdf

GB 4797.1-1984 电工电子产品自然环境条件 温度和湿度.pdf

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