设计电压型PW M变频器时死区时间的设定会造成输出谐波增加、负载电动机转矩脉动，严重时甚至引起电动机震荡。

In the design of voltage PWM inverter, the existence of dead-time will arouse the in-crease of output harmonic, the pulsation of the motor torque, and even the oscillation of the motor.

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“应用这种设计的外腔式量子级联激光器能够非常稳定地运行，这得益于对电压和温度的弱依赖关系，”他说。

"The external cavity quantum cascade laser with this design may operate very stable due to its low dependences on voltage and temperature," he says.

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“应用这种设计的外腔式量子级联激光器能够非常稳定地运行，这得益于对电压和温度的弱依赖关系，”他说。

The external cavity quantum cascade laser with this design may operate very stable due to its low dependences on voltage and temperature, he says.

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Each one of those electrodes allows us to measure, we plot voltage verses time, ? this signal coming from the tip of that electrode. Ok?

我们通过每个这样的电极都可以设计一种测量方法，我们设计电压比时间，这一信号源于电极的一端，对吧？

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