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NF Z66-353-1991 Information technology - Information systems interconnection - OSI layers 1 to 4 addressing《信息技术 信息系统互连 OSI1至4层寻址》.pdf 35

NF Z66-353-1991 Information technology - Information systems interconnection - OSI layers 1 to 4 addressing《信息技术 信息系统互连 OSI1至4层寻址》.pdfNF Z66-353-1991 Information technology - Information systems interconnection - OSI layers 1 to 4 addressing《信息技术 信息系统互连 OSI1至4层寻址》.pdf

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NF Z66-339-1995 Information technology Open systems interconnection Transport service definition 《信息技术 开放系统互连 传输服务定义》.pdf 35

NF Z66-339-1995 Information technology Open systems interconnection Transport service definition 《信息技术 开放系统互连 传输服务定义》.pdfNF Z66-339-1995 Information technology Open systems interconnection Transport service definition 《信息技术 开放系统互连 传输服务定义》.pdf

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NF X43-276-1993 Workplace atmospheres Size fraction definitions for measurement of airborne particles 《工作场所大气 测量空气中颗粒物用的粒度定义》.pdf 13

NF X43-276-1993 Workplace atmospheres Size fraction definitions for measurement of airborne particles 《工作场所大气 测量空气中颗粒物用的粒度定义》.pdfNF X43-276-1993 Workplace atmospheres Size fraction definitions for measurement of airborne particles 《工作场所大气 测量空气中颗粒物用的粒度定义》.pdf

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NF X43-275-2002 Air quality - Workplace air - Determination by atomic spectrometrie of elements present in workplace air 《空气质量 工作场所空气 用原子光谱测量法测定工作场所空气中存在的元素》.pdf 35

NF X43-275-2002 Air quality - Workplace air - Determination by atomic spectrometrie of elements present in workplace air 《空气质量 工作场所空气 用原子光谱测量法测定工作场所空气中存在的元素》.pdfNF X43-275-2002 Air quality - Workplace air - Determination by atomic spectrometrie of elements present in workplace air 《空气质量 工作场所空气 用原子光谱测量法测定工作场所空气中存在的元素》.pdf

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NF X43-273-1991 Air quality Workplace air Determination of methylbromide Sampling by pumping trough activated charcoal 《空气质量 工作场所空气 甲基溴的测定 经活性炭处理的泵抽吸取样》.pdf 15

NF X43-273-1991 Air quality Workplace air Determination of methylbromide Sampling by pumping trough activated charcoal 《空气质量 工作场所空气 甲基溴的测定 经活性炭处理的泵抽吸取样》.pdfNF X43-273-1991 Air quality Workplace air Determination of methylbromide Sampling by pumping trough activated charcoal 《空气质量 工作场所空气 甲基溴的测定 经活性炭处理的泵抽吸取样》.pdf

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NF X43-261-1988 Air quality Workplace atmospheres Sampling in a fixed location and measurement of total particle pollution 《空气质量 工作场所空气 定位采样和微粒总污染度的测量》.pdf 9

NF X43-261-1988 Air quality Workplace atmospheres Sampling in a fixed location and measurement of total particle pollution 《空气质量 工作场所空气 定位采样和微粒总污染度的测量》.pdfNF X43-261-1988 Air quality Workplace atmospheres Sampling in a fixed location and measurement of total particle pollution 《空气质量 工作场所空气 定位采样和微粒总污染度的测量》.pdf

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NF X43-259-1990 Air quality Workplace air Personal or stationary sampling of the alveolar fraction of particulate pollution Separation method using a 10 mm cyclone 《空气质量 工作场所空气 粒子污.pdf 15

NF X43-259-1990 Air quality Workplace air Personal or stationary sampling of the alveolar fraction of particulate pollution Separation method using a 10 mm cyclone 《空气质量 工作场所空气 粒子污.pdfNF X43-259-1990 Air quality Workplace air Personal or stationary sampling of the alveolar fraction of particulate pollution Separation method using a 10 mm cyclone 《空气质量 工作场所空气 粒子污.pdf

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NF X10-025-1991 THERMAL INSULATION DETERMINATION OF STEADY-STATE THERMAL RESISTANCE AND THERMAL CONDUCTIVITY HEAT-FLOWMETER METHOD 《绝热 热变电阻和在稳定状态下导热性的测定 流量测量方法》.pdf 13

NF X10-025-1991 THERMAL INSULATION DETERMINATION OF STEADY-STATE THERMAL RESISTANCE AND THERMAL CONDUCTIVITY HEAT-FLOWMETER METHOD 《绝热 热变电阻和在稳定状态下导热性的测定 流量测量方法》.pdfNF X10-025-1991 THERMAL INSULATION DETERMINATION OF STEADY-STATE THERMAL RESISTANCE AND THERMAL CONDUCTIVITY HEAT-FLOWMETER METHOD 《绝热 热变电阻和在稳定状态下导热性的测定 流量测量方法》.pdf

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NF X10-023-1999 Thermal performance of buildings Qualitative detection of thermal irregularities in building envelopes Infrared method 《建筑物的热性能 建筑物表层热度不均匀性的定性检测 红外线法》.pdf 19

NF X10-023-1999 Thermal performance of buildings Qualitative detection of thermal irregularities in building envelopes Infrared method 《建筑物的热性能 建筑物表层热度不均匀性的定性检测 红外线法》.pdfNF X10-023-1999 Thermal performance of buildings Qualitative detection of thermal irregularities in building envelopes Infrared method 《建筑物的热性能 建筑物表层热度不均匀性的定性检测 红外线法》.pdf

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NF X10-022-1983 Determination in laboratory of thermal transmission coefficients of constitutive partition wall by method of hot guarded box 《通过保温箱法进行本构隔墙热传导系数的实验室测定》.pdf 19

NF X10-022-1983 Determination in laboratory of thermal transmission coefficients of constitutive partition wall by method of hot guarded box 《通过保温箱法进行本构隔墙热传导系数的实验室测定》.pdfNF X10-022-1983 Determination in laboratory of thermal transmission coefficients of constitutive partition wall by method of hot guarded box 《通过保温箱法进行本构隔墙热传导系数的实验室测定》.pdf

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