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GB/T 223.57-1987 Methods for chemical analysis of iron，steel and alloy--The extraction-absorption catalytic polarographic method for the determination of cadmium content 钢铁及合金化学分析方法 萃取分离-吸附催化极谱法测定镉量 - 英文版 |
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GB/T 223.54-1987 Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrophotometric method for the determination of nickel content 钢铁及合金化学分析方法 火焰原子吸收分光光度法测定镍量 - 英文版 |
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GB/T 223.53-1987 Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrophotometric method for the determination of copper content 钢铁及合金化学分析方法 火焰原子吸收分光光度法测定铜量 - 英文版 |
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GB/T 223.52-1987 Methods for chemical analysis of iron，steel and alloy--The hydroxylamine hydrochloride-iodometric method for the determination of selenium content 钢铁及合金化学分析方法 盐酸羟胺-碘量法测定硒量 - 英文版 |
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GB/T 223.51-1987 Methods for chemical analysis of iron，steel and alloy--The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content 钢铁及合金化学分析方法 5-Br-PADAP 光度法测定锌量 - 英文版 |
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GB/T 7637-1987 Operation rules of construction and installation of biogas pipelines for peasant household 农村家用沼气管路施工安装操作规程 - 英文版 |
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GB/T 7636-1987 Standard on design of biogas pipelines for peasant household 农村家用沼气管路设计规范 - 英文版 |
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GB/T 7632-1987 Recommendations for the choice of lubricants for machine tools 机床用润滑剂的选用 - 英文版 |
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GB/T 7626-1987 4800 bits per second modem with manual equalizer standardized for use on leased telephone-type circuits 在租用电话型电路上使用的带人工均衡器的标准化的4800比特/秒调制解调器 - 英文版 |
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GB/T 7625-1987 2400/1200 bits per second modem standardized for use in the general switched telephone network 在电话自动交换网上使用的标准化 2400/1200比特/秒调制解调器 - 英文版 |
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GB/T 7624-1987 2400 bits persecond modem standardized for use on 4-wire leased telephone type circuits 在四线租用电话型电路上使用的标准化2400比特/秒调制解调器 - 英文版 |
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GB/T 7623-1987 Automatic answering equipment and/or parallel automatic calling equipment on the general switched telephone network， including procedures for bling of echo control devices for both manually and automatically established calls 在电话自动交换网上的自动应答设备和(或)并行自动呼叫设备， 包括人工和自动建立呼叫时使回波控制装置停止工作的规程 - 英文版 |
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GB/T 7622-1987 600/1200 bauds modem standardized for use in the general switched telephone network 在电话自动交换网上使用的标准化600/1200波特调制解调器 - 英文版 |
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GB/T 7621-1987 1200 bits per second duplex modem standardized for use in the general switched telephone network and on point-to-point 2-wire leased telephonecircuits 在电话自动交换网和点对点二线租用电话型电路上使用的标准化的1200比特/秒双工调制解调器 - 英文版 |
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GB/T 7620-1987 300 bits per second duplex modem standardized for use in the general switched telephone network 在电话自动交换网上使用的标准化300比特/秒全双工调制解调器 - 英文版 |
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GB/T 7619-1987 Electrical characteristics for balanced double-current interchange circuits for general use with integrated circuit equipment in the field of datacommunications 在数据通信领域中通常同集成电路设备一起使用的平衡双流接口电路的电气特性 - 英文版 |
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GB/T 7618-1987 Electrical characteristics for unbalanced double-current interchange circuits for general use with inte-grated circuit equipment in the field of data communications 在数据通信领域中通常同集成电路设备一起使用的非平衡双流接口电路的电气特性 - 英文版 |
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GB/T 7610-1987 Characteristics of pulse code modulation for voice-frequencies 音频脉冲编码调制特性 - 英文版 |
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GB/T 7590-1987 Code of Chinese ideograms set forinformation interchange--The 4th supplementary set 信息交换用汉字编码字符集 第四辅助集 - 英文版 |
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GB/T 7589-1987 Code of Chinese ideograms set forinformation interchange--The 2nd supplementary set 信息交换用汉字编码字符集 第二辅助集 - 英文版 |
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GB/T 7514-1987 Conversion between the 7-bit coded character set for information processing interchange and the 5-unit code for the telegraph service 信息处理交换用七位编码字符集与电报用五单位电码之间的转换 - 英文版 |
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GB/T 7585-1987 Capacity series and radio-frequency channel arrangement for analog microwave relay systems 模拟微波接力通信系统容量系列及波道配置 - 英文版 |
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GB/T 7583-1987 Acoustics--Pure tone air conductionthreshold audio-metry--for hearing conservation purposes 声学 纯音气导听阈测定 听力保护用 - 英文版 |
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GB/T 7581-1987 Dimensions of outlines for semiconductor discrete devices 半导体分立器件外形尺寸 - 英文版 |
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GB/T 7554-1987 Protected 5-unit numerical code for telegram service 电报用五单位数字保护码 - 英文版 |
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GB/T 7509-1987 Blank detail specification for microprocessor semiconductor integrated circuits 半导体集成电路微处理器空白详细规范 (可供认证用) - 英文版 |
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GB/T 7515-1987 Information processing--Coding of machine readable characters (MICR and OCR) 信息处理用机器可读字符编码 (磁墨水字符识别和光学字符识别的字符) - 英文版 |
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GB/T 7436-1987 Specifications of TDM equipment operating on an analog telephone-type circuit for telegraph and lower-speed data 在模拟电话电路上开放电报及低速数据的时分复用设备技术要求 - 英文版 |
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GB/T 7422.2-1987 16×12， 16×8， 16×4 Dot matrix data set of Mongo-lian characters for information interchange 信息交换用蒙古文16×12、16×8、16×4点阵数据集 - 英文版 |
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GB/T 7422.1-1987 16×12， 16×8， 16×4 Dot matrix font set of Mongo-lian characters for information interchange 信息交换用蒙古文16×12、16×8、16×4点阵字模集 - 英文版 |
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GB/T 7419-1987 Information processing--Implementation of the 7-bit coded character set and its 7-bit and 8-bit extensions on 3.81mm magnetic tape cassette for data interchange 信息处理 数据交换用七位编码字符集及其七位与八位扩充在3.81mm盒式磁带上的实现方法 - 英文版 |
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GB/T 7401-1987 Method for subjective assessment of quality of colour television pictures 彩色电视图像质量主观评价方法 - 英文版 |
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GB/T 4312.3-1987 Technical parameters and measuring methods for FM broadcasting transmitters of dual programmes 调频广播发射机技术参数和测量方法 双节目 - 英文版 |
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GB/T 7393-1987 Basic size of outlet of cable distribution systems intended for sound and television signals 声音和电视信号的电缆分配系统输出口基本尺寸 - 英文版 |
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GB/T 7372-1987 Dichlorodifluoromethane for industrial uses 工业用二氟二氯甲烷 (F12) - 英文版 |
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GB/T 7371-1987 Trichloromonofluoromethane for industrial uses 工业用一氟三氯甲烷 (F11) - 英文版 |
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GB/T 7340-1987 Fixed resistors for use in electronic equipment--Part 6:Blank detail specification--Fixed resistor networks with individually measurable resistor of either different resistance values or different rated dissipations--Assessment level E 电子设备用固定电阻器 第六部分:空白详细规范 阻值和功耗不同， 各电阻器可单独测量的固定电阻网络 评定水平 E (可供认证用) - 英文版 |
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GB/T 7339-1987 Fixed resistors for use in electronic equipment--Part 6:Blank detail specification--Fixed resistor networks with individually measurable resistors， all of equal value and equal dissipation--Assessment level E 电子设备用固定电阻器 第六部分:空白详细规范 阻值和功耗相同， 各电阻器可单独测量的固定电阻网络 评定水平 E (可供认证用) - 英文版 |
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GB/T 7313-1987 Minimum performance requirements and methods of measurement for high fidelity loudspeaker systems 高保真扬声器系统最低性能要求及测量方法 - 英文版 |
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GB/T 2019-1987 Fundamental parameters and technical requirements for audio tape recorders 磁带录音机基本参数和技术要求 - 英文版 |
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GB/T 7288.2-1987 Equipment reliability testing--Preferred test conditions--Equipment for stationary use in weather protected locations--High degree of simulation 设备可靠性试验 推荐的试验条件 固定使用在有气候防护场所设备 精模拟 - 英文版 |
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GB/T 7259-1987 Guidelines for presenting performance of analog process measurement and control instrument 模拟式过程测量和控制仪表性能表示方法 导则 - 英文版 |
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GB 7355-1987 Sanitary standard for lead and it’s inorganic compounds in the atmosphere 大气中铅及其无机化合物的卫生标准 - 英文版 |
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GB/T 7265.2-1987 Test method for the complex permittivity of solid dielectric materials at microwave frequencies--Open cavity method 固体电介质微波复介电常数的测试方法 开式腔法 - 英文版 |
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GB/T 7265.1-1987 Test method for complex permittivity of solid dielectric materials at microwave frequencies--Perturbation method 固体电介质微波复介电常数的测试方法 微扰法 - 英文版 |
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GB/T 7188-1987 Office machines and data processing equipment--Keyboard layouts for numeric applications 办公机器和数据处理设备数字应用的键盘布局 - 英文版 |
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GB/T 7130-1986 Determination of free phenols in phenol-formaldehyde mouldings--Iodometric method 酚醛模塑制品中游离酚的测定 碘量法 - 英文版 |
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GB 7105-1986 Sanitary specifications of perchloravinyl interior coatings for food container 食品容器过氯乙烯内壁涂料卫生标准 - 英文版 |
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GB/T 5080.7-1986 Equipment reliability testing--Compliance test plans for failure rate and mean time between failures assuming constant failure rate 设备可靠性试验 恒定失效率假设下的失效率与平均无故障时间的验证试验方案 - 英文版 |
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GB/T 7021-1986 Glossary of terms for centrifugal pump 离心泵名词术语 - 英文版 |
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