这些电梯由地面发射的激光束驱动，接收装置则是位于机械上的光伏单位——正如太阳能电池板中使用的一样——而这个过程被称做“能量束驱动”（power beaming）。
They are powered by laser beams on the ground firing at photovoltaic cells on the vehicles – like those used in solar panels – in a process called “power beaming”.
由于激光光束的能量强大到足以在刀片上钻洞，物理学家使用穿透刀片的数量作为激光能量的计量单位。
Because the beam was powerful enough to drill holes in razor blades, physicists measured its power in gillettes, or the number of blades penetrated.
中缝核单位激活可能在激光镇痛作用中起重要作用。
The activation of NR units may play an important role ia laser analgesia.
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