Worse, protective measures like wearing face masks barely help because the particles are too small.
石远凯说，“更糟糕的是，因为颗粒太小，像戴口罩这样的保护性措施几乎不会起到什么作用。”
The moon is full of tiny particles, a bit like the earth's beach.
月面上到处是细小的颗粒，有点像地球的海滩。
Like a wind under a microscope we see the particles not the Current.
就象在显微镜下的一阵风，我们观察到粒子而非气流。
Like a wind under a microscope we see the particles not the Current.
就象在显微镜下的一阵风，我们观察到粒子而非气流。
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