当空气污染危害人体健康,使气候升温时,对此采取行动情有可原。那么用污染物使地球降温这个做法如何呢?
When air pollution hurts people's health and heats up the climate it makes sense to do something about it. But what about pollution that cools the planet?
采用石墨作为激光器电极使激光器能在体不流动情况下以每秒50次运转。
By using graphite as electrode, the laser can be operated up to 50hz without gas flowing.
在原有匀速刚性模型的基础上,提出考虑了扑翼扑动速率变化和形状变化的柔性扑翼模型,使之更接近鸟翼真实扑动情况。
On the basis of former rigid wing model and consideration of the velocity change and the distortion of wing plane, a flapping model is developed.
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