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SIS SS 421 05 01-1988 Standard voltages for transmission and distribution of electric energy《电能输电和配电标准电压》.pdf 4

SIS SS 421 05 01-1988 Standard voltages for transmission and distribution of electric energy《电能输电和配电标准电压》.pdfSIS SS 421 05 01-1988 Standard voltages for transmission and distribution of electric energy《电能输电和配电标准电压》.pdf

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SIS SS 421 01 68-1991 Short-circuit current calculation in three-phase a c systems《三相交流系统的短路电流计算》.pdf 3

SIS SS 421 01 68-1991 Short-circuit current calculation in three-phase a c systems《三相交流系统的短路电流计算》.pdfSIS SS 421 01 68-1991 Short-circuit current calculation in three-phase a c systems《三相交流系统的短路电流计算》.pdf

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SIS SS 421 01 67-1990 Design of outdoor substations -Wind loads《户外变电站设计 气动载荷》.pdf 35

SIS SS 421 01 67-1990 Design of outdoor substations -Wind loads《户外变电站设计 气动载荷》.pdfSIS SS 421 01 67-1990 Design of outdoor substations -Wind loads《户外变电站设计 气动载荷》.pdf

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SIS SS 421 01 66-1990 Mechanical design of outdoor substations《户外变电站的机械设计》.pdf 6

SIS SS 421 01 66-1990 Mechanical design of outdoor substations《户外变电站的机械设计》.pdfSIS SS 421 01 66-1990 Mechanical design of outdoor substations《户外变电站的机械设计》.pdf

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SIS SS 421 01 65-1989 Calculation of the effects of short-circuit currents《短路电流的影响计算》.pdf 2

SIS SS 421 01 65-1989 Calculation of the effects of short-circuit currents《短路电流的影响计算》.pdfSIS SS 421 01 65-1989 Calculation of the effects of short-circuit currents《短路电流的影响计算》.pdf

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SIS SS 18 71 71-1984 Biofuels - Determination of ash content《生物燃料 灰分含量的测定》.pdf 3

SIS SS 18 71 71-1984 Biofuels - Determination of ash content《生物燃料 灰分含量的测定》.pdfSIS SS 18 71 71-1984 Biofuels - Determination of ash content《生物燃料 灰分含量的测定》.pdf

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SIS SS 18 71 70-1990 Biofuels and peat Determination of total moisture content《生物燃料和泥炭 总水分含量的测定》.pdf 3

SIS SS 18 71 70-1990 Biofuels and peat Determination of total moisture content《生物燃料和泥炭 总水分含量的测定》.pdfSIS SS 18 71 70-1990 Biofuels and peat Determination of total moisture content《生物燃料和泥炭 总水分含量的测定》.pdf

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SIS SS 18 71 69-1987 Coal - Determination of oxygen content《煤 氧含量的测定》.pdf 13

SIS SS 18 71 69-1987 Coal - Determination of oxygen content《煤 氧含量的测定》.pdfSIS SS 18 71 69-1987 Coal - Determination of oxygen content《煤 氧含量的测定》.pdf

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SIS SS 18 71 68-1986 Coal and coke - Determination of carbon and hydrogen - High temperature combustion method《煤和焦炭 碳和氢含量的测定 高温燃烧法》.pdf 7

SIS SS 18 71 68-1986 Coal and coke - Determination of carbon and hydrogen - High temperature combustion method《煤和焦炭 碳和氢含量的测定 高温燃烧法》.pdfSIS SS 18 71 68-1986 Coal and coke - Determination of carbon and hydrogen - High temperature combustion method《煤和焦炭 碳和氢含量的测定 高温燃烧法》.pdf

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SIS SS 18 71 67-1984 Solid mineral fuels - Determination of carbon dioxide content - Gravimetric method《固体矿物燃料 测定二氧化碳含量 重量法》.pdf 4

SIS SS 18 71 67-1984 Solid mineral fuels - Determination of carbon dioxide content - Gravimetric method《固体矿物燃料 测定二氧化碳含量 重量法》.pdfSIS SS 18 71 67-1984 Solid mineral fuels - Determination of carbon dioxide content - Gravimetric method《固体矿物燃料 测定二氧化碳含量 重量法》.pdf

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