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NF X43-016-1977 Method for the determination of an acid gas pollution index(expressed as SO2 equivalent)using a continuous sampling automatic sequential analyser 《用连续取样自动顺序分析仪测定酸性气.pdf 10

NF X43-016-1977 Method for the determination of an acid gas pollution index(expressed as SO2 equivalent)using a continuous sampling automatic sequential analyser 《用连续取样自动顺序分析仪测定酸性气.pdfNF X43-016-1977 Method for the determination of an acid gas pollution index(expressed as SO2 equivalent)using a continuous sampling automatic sequential analyser 《用连续取样自动顺序分析仪测定酸性气.pdf

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NF X43-015-1976 Air pollution Nitrogen dioxide content of atmospheric air Method of determination by collection on a triethanolamine-impregnated filter 《空气污染 大气中二氧化氮含量的测定 用三乙醇胺浸渍的过.pdf 4

NF X43-015-1976 Air pollution Nitrogen dioxide content of atmospheric air Method of determination by collection on a triethanolamine-impregnated filter 《空气污染 大气中二氧化氮含量的测定 用三乙醇胺浸渍的过.pdfNF X43-015-1976 Air pollution Nitrogen dioxide content of atmospheric air Method of determination by collection on a triethanolamine-impregnated filter 《空气污染 大气中二氧化氮含量的测定 用三乙醇胺浸渍的过.pdf

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NF X43-013-1977 Atmospheric pollution determination of the concentration by mass ofsulphur dioxide in the ambient air analysis by the thorin spectrophotometric method 《大气污染 环境空气中二氧.pdf 8

NF X43-013-1977 Atmospheric pollution determination of the concentration by mass ofsulphur dioxide in the ambient air analysis by the thorin spectrophotometric method 《大气污染 环境空气中二氧.pdfNF X43-013-1977 Atmospheric pollution determination of the concentration by mass ofsulphur dioxide in the ambient air analysis by the thorin spectrophotometric method 《大气污染 环境空气中二氧.pdf

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NF X07-143-1993 Metrology-tests-Test design and realization -Pertinence and representativeness of the tests《计量学试验 试验设计和实现 试验的相关性和代表性》.pdf 11

NF X07-143-1993 Metrology-tests-Test design and realization -Pertinence and representativeness of the tests《计量学试验 试验设计和实现 试验的相关性和代表性》.pdfNF X07-143-1993 Metrology-tests-Test design and realization -Pertinence and representativeness of the tests《计量学试验 试验设计和实现 试验的相关性和代表性》.pdf

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NF X07-016-1993 Metrology-tests-Company metrology-Practical methods for establishing the calibration and verification procedures of the measuring means《计量测试公司用计量的实用方法建立校准和验证程序的测量方法.pdf 16

NF X07-016-1993 Metrology-tests-Company metrology-Practical methods for establishing the calibration and verification procedures of the measuring means《计量测试公司用计量的实用方法建立校准和验证程序的测量方法.pdfNF X07-016-1993 Metrology-tests-Company metrology-Practical methods for establishing the calibration and verification procedures of the measuring means《计量测试公司用计量的实用方法建立校准和验证程序的测量方法.pdf

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NF X06-904-1992 Vocabulary of random signals-Spectral analysis of continuous signals《随机信号的词汇 连续信号的光谱分析法》.pdf 23

NF X06-904-1992 Vocabulary of random signals-Spectral analysis of continuous signals《随机信号的词汇 连续信号的光谱分析法》.pdfNF X06-904-1992 Vocabulary of random signals-Spectral analysis of continuous signals《随机信号的词汇 连续信号的光谱分析法》.pdf

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NF X06-903-1992 Random signal terminology-Transformation of signal《随机信号术语 信号的变换》.pdf 7

NF X06-903-1992 Random signal terminology-Transformation of signal《随机信号术语 信号的变换》.pdfNF X06-903-1992 Random signal terminology-Transformation of signal《随机信号术语 信号的变换》.pdf

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NF X06-902-1992 Random signal terminology-Statistics《随机信号术语统计》.pdf 8

NF X06-902-1992 Random signal terminology-Statistics《随机信号术语统计》.pdfNF X06-902-1992 Random signal terminology-Statistics《随机信号术语统计》.pdf

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NF V05-110-1970 Products derived from fruit and vegetables Determination of copper content 《水果和蔬菜衍生制品 铜含量测定》.pdf 3

NF V05-110-1970 Products derived from fruit and vegetables Determination of copper content 《水果和蔬菜衍生制品 铜含量测定》.pdfNF V05-110-1970 Products derived from fruit and vegetables Determination of copper content 《水果和蔬菜衍生制品 铜含量测定》.pdf

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NF V05-109-1970 Agricultural products Fruit and vegetable products Determination of soluble solids content (refractometric method) 《农产品 水果和蔬菜制品 可溶性固体成份的测定(折射计法)》.pdf 5

NF V05-109-1970 Agricultural products Fruit and vegetable products Determination of soluble solids content (refractometric method) 《农产品 水果和蔬菜制品 可溶性固体成份的测定(折射计法)》.pdfNF V05-109-1970 Agricultural products Fruit and vegetable products Determination of soluble solids content (refractometric method) 《农产品 水果和蔬菜制品 可溶性固体成份的测定(折射计法)》.pdf

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