Acoustics is the science of sound waves and their production, transmission, reception and control.

声学是研究声波及其产生、传播、接受和控制的科学。

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Upon reception of a burst detection start trigger signal, a gain control signal is output to an automatic gain control amplifier (201) so as to perform amplification with a maximum value.

当接收到短脉冲检测开始触发信号时，向自动增益控制放大器(201)输出一个增益控制信号，以便用最大值进行放大。

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Acoustics: Science of production, control, transmission, reception, and effects of sound.

声学：探讨声音之产生、控制、传达、接收及其效果的科学。

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Huawei's unique Quick Power Control (QPC) and Automated Discontinuous Reception (ADRX) power-saving technologies, reduces power consumption by 30% and charging time by more than 25% compared to other smartphones.

ENGADGET: Huawei Ascend P2 hitting Europe in Q2 for 399 euros, we go hands-on (update: video)