-
[时差N小时] 时差N小时:风力发电机(上)
If you’ve ever driven by a wind farm, you may have noticed that the turbines most likely have three blades. Not two, not five, but three. Now, you may think that if the point of a wind turbine2011-12-14 编辑：beck
-
[时差N小时] 时差N小时:风力发电机(下)
Turbines with one or two blades are actually even more efficient. But because they’re also lighter and tend to spin faster, they’re also noisier. These designs also require a special tilt2011-12-15 编辑：beck
-
[VOA慢速英语视频 ] VOA慢速英语视频(视频+中英文本) 第149期:无叶片风力发电机对鸟类无害
风力涡轮机是配备发电用途大叶片的高大结构体。它们是低成本可再生能源的有效来源。2015-08-10 编辑：max
