The cost of wind-power generation has come down from 8-10 cents to 3.5-4 cents per kWh since 1990 because of better turbines and higher volumes.
得益于性能更佳的涡轮和更大的发电量，自1990年以来，风力发电每千瓦时的成本从8 - 10美分下降下3.5 -4美分。
Wind energy is a green energy and wind power generation technology has also become a research hotspot from various countries 'scholars.
作为绿色能源的风能，风力发电技术也成为各国学者竞相研究的热点。
Wind energy is a green energy and wind power generation technology has also become a research hotspot from various countries 'scholars.
作为绿色能源的风能，风力发电技术也成为各国学者竞相研究的热点。
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