The energy in the wind turns two or three propeller-like blades around a rotor.
2
双稳态复合材料能在风力及水流状态变化时迅速改变空气动力形态，帮助去除涡轮叶片上多余的压力。
A bistable composite capable of altering its aerodynamic profile rapidly when wind and current conditions changed would help to remove unwanted stresses in the blades.
3
丹麦科学家正在开发一种新型的风机叶片，它模拟实现了鹰翼在强紊流风力条件下的稳定性。
Danish scientists are developing a new wind turbine blade that mimics the stability found in hawk wings during highly-turbulent wind events.
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