可以操作声子并只让它们向一个方向流动的设备正在被建造，这是二极管的热等价物。
Far from it. Devices are being built that can manipulate phonons, allowing them to flow in one direction only, for example - the thermal equivalent of a diode.
当利用这一配置测量漏流时，通过每个继电器的常闭触点同时向所有的二极管施加偏压。
When measuring the leakage current with this setup, the voltage bias is applied to all the diodes simultaneously through the normally closed contact of each relay.
在向小鼠头骨植入一块玻璃窗后，研究人员又在它们头上安装了小型的发光二极管。
Having implanted a glass window into the skulls of their mice, the researchers mounted a tiny light-emitting diode onto the animals' heads.
但即使在向节能灯过渡完成之前，向发光二极管(LED)过渡正在进行之中。
But even before the transition to CFLs is complete, the shift to light-emitting diodes (LEDs) is under way.
其中一个发光二极管向另一个发出一个光束。
其中一个发光二极管向另一个发出一个光束。
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