如果这种加热器都安装上能付诸连续使用太阳光热电发电机，那么首先，电能能够从中提取。

If such heaters were covered with thermoelectric generators the sun's rays could be put to sequential use. First, electric power would be extracted from them.

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与风车和太阳加热器不同，波浪发电机被证明是一个失败的产品。

Unlike windmills or solar hot water heaters, wave motors proved technical failures.

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