SNV 71111 a-1959 《涡旋线 啮合 带有专业术语的字母符号，分为德语；法语；英语和意大利语 》.pdf

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HB 6634-1992 降落伞专业术语.pdf

SY T 6139-1996 石油测井专业术语.pdf

GB T 18207.2-2005 防震减灾术语 第2部分 专业术语.pdf

GB T 4718-1996 火灾报警设备专业术语.pdf

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GB T 4718-1996 火灾报警设备专业术语.pdf

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