Solar energy is lauded as an inexhaustible fuel source that is pollution and often noise free. The technology is also versatile.
太阳能被称为是取之不尽的能源,没有污染,通常也没有噪声,而且用途广泛。
Solar energy has the obvious advantage that the sun is an inexhaustible and abundant source which is free of both pollution and radioactivity.
由于太阳是没有污染和放射性的无穷无尽的丰富资源,具有明显的优点。
Hydrogen is an alternative energy source with high efficiency and pollution free.
氢能是高效、环保型替代能源。
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