(3) 能源成本 ( Energy cost )：维持其工程运转所需之成本。 (4) 使用寿命成本(Life cycle cost)：每一工程或产品皆有一使用寿命及其寿命内之折旧 率，分期付...
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这些新能源成本非常低，而且永远用不尽。
These new types of energy cost very little and will never run out.
你们都听说过，最近全球食品价格的上涨是由于能源成本的上升。
The recent spike in food prices around the world that you've all heard of is because of rising energy costs.
这会显著降低公司的总能源成本。
This can significantly reduce the overall cost of energy for companies.
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