因此，对小型风力发电系统进行研究具有重要的意义。

Therefore, it is meaningful to study the small wind power generation system.

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屋顶上也装设了小型风力发电机，可为部屋供应部分电力。

A small wind turbine is also installed on the rooftop, supplying part of the electricity consumed in the House.

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另外，许多节点是由小型风力发电机和太阳能电池供电，它们能无限地供电给节点。

In addition, many of the nodes are powered by small wind turbines and solar cells, which may be able to power them indefinitely.

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