据国际能源署估算，与之形成对比的是美国的近海风力发电，成本为50-70美元/千瓦时，而化石燃料发电如果不算温室气体排放税的话，价格更低。
That compares with $50-70 per MWh for onshore wind power in America, by the IEA’s reckoning, and even lower prices for power from fossil fuels, unless taxes on greenhouse-gas emissions are included.
换句话说，如果为顾客提供服务的成本(暂时忽略支持的费用)为“0”，那么这个产品在市场上的长期价格也将会是“0”(这是由竞争压力形成的)。
In other words, if the cost to serve a customer (support aside) is zero, the long-term price of the product in the market will be zero (because of competitive pressure).
铁矿石等原料价格居高，成本价格的高企对钢材价格形成支撑。
Iron ore prices materials such as high, high costs for the price of steel form support.
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