Figure 1 shows an Arduino microprocessor with an Ethernet shield mounted and a cat5 Ethernet and power supply cables attached, which gives you an idea of the size of the unit.

图1显示了一个装了Ethernet shield、cat 5 Ethernet及电源电缆的arduino微处理器，此图可让您对此单元的规模有一个大致的了解。

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With chopping principle, switching power supply is chosen as the DC power supply because of its small size, low weight and high efficiency.

论文采用直流斩波原理，利用体积小、重量轻、效率高、可靠性好的开关电源作为直流供电电源。

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In this system, the size of the filter is not limited by the space of installment and it is possible to heat of the filter by using more than one microwave power supply.

多模箱式再生系统中过滤体的尺寸可以不受安装空间的限制，并且可以采用多个微波源馈入功率以提高再生腔中的微波功率密度或改善加热均匀性。

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Both countries remain besotted with sheer size, though many of the most promising developments in power supply are in small-scale generation.

ECONOMIST: At last, a market for energy

Consider: An 86-kilowatt hydroelectric station in Argentina will provide power to a tiny rural community there while a wind and diesel hybrid system of the same size will supply another village.

FORBES: Presidential Candidates: Energy Diplomacy Key to Global Cooperation

Forth Energy said if built, the plant would generate 100MW of electricity, the equivalent of 86% of Dundee's power needs, and produce 30MW of heat, enough to supply the needs of six hospitals the size of Ninewells.

BBC: Dundee Biomass Centre