数值模拟结果给出这类电子器件的量子极限——可观察到共振隧穿现象的量子阱宽度的限度。
The numerical simulation results show the quantum limit of the quantum well width, beyond which will observe the resonant tunneling phenomena.
由于一次太阳风的爆炸，来自太阳的带电粒子，在星期二撞击了地球。从而引发了极光现象，最南边到密西根州都可观察到，这张照片是在马奎特的苏必利尔湖沿岸拍摄的。
A burst of solar wind-charged particles from the sun-struck Earth on Tuesday, triggering auroras as far south as Michigan, as seen in this picture taken from the shores of Lake Superior in Marquette.
由于一次太阳风的爆炸，来自太阳的带电粒子，在星期二撞击了地球。从而引发了极光现象，最南边到密西根州都可观察到，这张照片是在马奎特的苏必利尔湖沿岸拍摄的。
A burst of solar wind-charged particles from the sun-struck Earth on Tuesday, triggering auroras as far south as Michigan, as seen in this picture taken from the shores of Lake Superior in Marquette.
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