Varying the voltage or the distance between the ground plate and the graphene alters the conductivity, "just like tuning a knob," Engheta said.
改变电压或是接地板与石墨层之间的距离都能改变传导率，“就像调节旋钮一样”，Engheta说。
When radios were first put in automobiles, we all discovered that manually tuning an analog radio with a rotating knob while driving was dangerous to your health.
当汽车第1次装上收音机时，我们就发现在行驶过程中旋转按钮手动调频会危及生命。
When radios were first put in automobiles, we all discovered that manually tuning an analog radio with a rotating knob while driving was dangerous to your health.
当汽车第1次装上收音机时，我们就发现在行驶过程中旋转按钮手动调频会危及生命。
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