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China can now power one hundred and ten million homes
如今的中国可以为1亿1千万个家庭供电
by harnessing the electricity generating power of the wind.
通过利用风能发电
And in just five years, it plans to double that.
而且在五年之内 中国就计划把供电户数翻一倍
But the space-age composite materials have to withstand extreme conditions.
但是使用的航空复合材料必须能抵抗住各种极端天气
Wind blades, some as long as two hundred feet
有些风电叶片长达200英尺
have to cope with temperature swings of a hundred and thirty degrees.
为了经受住130度左右的气温振幅
