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NC 15-57-1986 Cool Technique Commercial and Industrial Equipment Thermal-Charge Calculation Sheet for Air-conditioning Installations《制冷技术 商业和工业设备 空调系统装置热荷计算片》.pdf 7

NC 15-57-1986 Cool Technique Commercial and Industrial Equipment Thermal-Charge Calculation Sheet for Air-conditioning Installations《制冷技术 商业和工业设备 空调系统装置热荷计算片》.pdfNC 15-57-1986 Cool Technique Commercial and Industrial Equipment Thermal-Charge Calculation Sheet for Air-conditioning Installations《制冷技术 商业和工业设备 空调系统装置热荷计算片》.pdf

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4人阅读
NC 15-56-1986 Cool Technique Organic Refrigerants Utilization Rules《制冷技术 有机制冷剂 利用规则》.pdf 6

NC 15-56-1986 Cool Technique Organic Refrigerants Utilization Rules《制冷技术 有机制冷剂 利用规则》.pdfNC 15-56-1986 Cool Technique Organic Refrigerants Utilization Rules《制冷技术 有机制冷剂 利用规则》.pdf

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3人阅读
NC 09-04-14-1985 Unified Elements System of Molds Dies Stampers and Devices Ring Main Dimensions and Design Specifications《模具统一原理系统 冲模，压模和机械装置 环 主要尺寸和设计规格》.pdf 4

NC 09-04-14-1985 Unified Elements System of Molds Dies Stampers and Devices Ring Main Dimensions and Design Specifications《模具统一原理系统 冲模，压模和机械装置 环 主要尺寸和设计规格》.pdfNC 09-04-14-1985 Unified Elements System of Molds Dies Stampers and Devices Ring Main Dimensions and Design Specifications《模具统一原理系统 冲模，压模和机械装置 环 主要尺寸和设计规格》.pdf

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NC 09-04-13-1985 Unified Elements System of Molds Dies Stampers and Devices Lever Main Dirnensions and Design Specifications《模具统一原理系统 冲模，压模和机械装置 杆 主要尺寸和设计规格》.pdf 4

NC 09-04-13-1985 Unified Elements System of Molds Dies Stampers and Devices Lever Main Dirnensions and Design Specifications《模具统一原理系统 冲模，压模和机械装置 杆 主要尺寸和设计规格》.pdfNC 09-04-13-1985 Unified Elements System of Molds Dies Stampers and Devices Lever Main Dirnensions and Design Specifications《模具统一原理系统 冲模，压模和机械装置 杆 主要尺寸和设计规格》.pdf

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NC 09-04-12-1985 Unified Elements System of Molds Dies Stampers and Devices Travelling Lever Main Dimensions《模具统一原理系统 冲模，压模和机械装置 控制杆主要尺寸》.pdf 4

NC 09-04-12-1985 Unified Elements System of Molds Dies Stampers and Devices Travelling Lever Main Dimensions《模具统一原理系统 冲模，压模和机械装置 控制杆主要尺寸》.pdfNC 09-04-12-1985 Unified Elements System of Molds Dies Stampers and Devices Travelling Lever Main Dimensions《模具统一原理系统 冲模，压模和机械装置 控制杆主要尺寸》.pdf

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NC 09-04-115-1988 Unified Elements System of Moulds Dies Stampers and Machining Devices Devices Oscillating Clamp Plate Design Specifications《模具统一原理系统 冲模，压模和机械装置 机械装置 振荡夹板设计规格》.pdf 4

NC 09-04-115-1988 Unified Elements System of Moulds Dies Stampers and Machining Devices Devices Oscillating Clamp Plate Design Specifications《模具统一原理系统 冲模，压模和机械装置 机械装置 振荡夹板设计规格》.pdfNC 09-04-115-1988 Unified Elements System of Moulds Dies Stampers and Machining Devices Devices Oscillating Clamp Plate Design Specifications《模具统一原理系统 冲模，压模和机械装置 机械装置 振荡夹板设计规格》.pdf

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NC 09-04-11-1985 Unified Elements System of Molds Dies Stampers and Devices Machining Device Locknut with Fixed or Travelling Lever Main Dimensions and Design Specifications《模具统一原理.pdf 6

NC 09-04-11-1985 Unified Elements System of Molds Dies Stampers and Devices Machining Device Locknut with Fixed or Travelling Lever Main Dimensions and Design Specifications《模具统一原理.pdfNC 09-04-11-1985 Unified Elements System of Molds Dies Stampers and Devices Machining Device Locknut with Fixed or Travelling Lever Main Dimensions and Design Specifications《模具统一原理.pdf

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NBN-ISO 3747-1992 2500 Acoustics Determination of sound power levels of noise sources Survey method using a reference sound source《声学 用声压测定噪声源声音功率级 使用参考声音来源的方法》.pdf 2

NBN-ISO 3747-1992 2500 Acoustics Determination of sound power levels of noise sources Survey method using a reference sound source《声学 用声压测定噪声源声音功率级 使用参考声音来源的方法》.pdfNBN-ISO 3747-1992 2500 Acoustics Determination of sound power levels of noise sources Survey method using a reference sound source《声学 用声压测定噪声源声音功率级 使用参考声音来源的方法》.pdf

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NBN-ISO 3746-1992 4375 Acoustics Determination of sound power levels of noise sources Survey method《声学 用声压测定噪声源声音功率级 检验方法》.pdf 2

NBN-ISO 3746-1992 4375 Acoustics Determination of sound power levels of noise sources Survey method《声学 用声压测定噪声源声音功率级 检验方法》.pdfNBN-ISO 3746-1992 4375 Acoustics Determination of sound power levels of noise sources Survey method《声学 用声压测定噪声源声音功率级 检验方法》.pdf

上传人：sumcourage256
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NBN-ISO 3745-1992 6250 Acoustics Determination of sound power levels of noise sources Precision methods for anechoic and semi-anechoic rooms《声学 用声压测定噪声源声音功率级 混响室内的精密方法》.pdf 2

NBN-ISO 3745-1992 6250 Acoustics Determination of sound power levels of noise sources Precision methods for anechoic and semi-anechoic rooms《声学 用声压测定噪声源声音功率级 混响室内的精密方法》.pdfNBN-ISO 3745-1992 6250 Acoustics Determination of sound power levels of noise sources Precision methods for anechoic and semi-anechoic rooms《声学 用声压测定噪声源声音功率级 混响室内的精密方法》.pdf

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