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访问控制系统和设备用以太网供电(PoE)电源来源
UL Standard for Safety Power Over Ethernet (PoE) Power Sources for Access Control Systems and Equipment (First Edition; Reprint with revisions through and including February 2@ 2015)
参考页数：18P.;A4
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通信电源设备安装工程设计规范
Code for design of engineering for telecommunication power supply equipment installation
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视距微波接力通信系统与空间无线电通信系统共用频率的技术要求
Frequency sharing criteria between line-of-sight radio-relay communications systems and space radio communications systems
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通信用太阳能电源系统
The photovoltaic power system for telecommunication
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通信用风能电源系统
The power system of wind energy for telecommunication
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接入网设备与远端模块电源系统的综合再利用
Synthetic reuse of power supply system for access network equipment and remote module
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通信用锂离子电池的回收处理要求
Recycling and treatment requirements of lithium-ion battery for telecommunication
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通信用铅酸蓄电池的回收处理要求
Recycling and treatment requirements of lead-acid battery for telecommunications
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移动通信手持机用锂离子电源充电器
The charger for lithium-ion batteries of cellular phones
价格：￥0.00
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通信用电源设备通用试验方法
General test methods of power supply equipments for telecommunications
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