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人类工效学.对标准电话机按键上的数字按字母方式排列
Human Factors (HF) - Assignment of alphabetic letters to digits on standard telephone keypad arrays.
参考页数：9P.;A4
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综合业务数字网(ISDN).电话终端.付费电话
Integrated Services Digital Network (ISDN) - Telephony terminals - Payphones.
参考页数：19P.;A4
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电工词汇.第722篇:综合电话技术
Electrotechnical vocabulary. Chapter 722 : telephony.
参考页数：64P.;A4
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手柄电话助听器耦合技术 要求和测量方法
The requirements of hearing aids compatibility and measurement methods for telephone handset
价格：￥0.00
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无绳电话机技术要求和测试方法
The technical requirements and test methods for cordless telephone sets
价格：￥0.00
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移动电话电磁辐射局部暴露限值
Limits for human local exposure to electromagnetic fields emitted by mobile phones
价格：￥0.00
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自动电话机技术条件
The specifications of automatic telephone set
价格：￥0.00
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接入电话网的电话机和其它设备上用于发号的数字、字母和符号
Arrangement of digits,letters and symbols on telephones and other devices that can be used for gaining access to a telephone network
价格：￥0.00
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进出口信息技术设备检验规程 第7部分:有线电话机
Rules for the inspection of telephone for import and export
价格：￥8.00
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