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1·A thermoacoustic engine converts thermal energy into acoustic power by thermoacoustic effect without any mechanical moving parts.

热声发动机利用热声效应把热能转化为声功，系统中不存在任何机械运动部件。

2·The intrinsic relation between the pneumatic parameter, structural parameter and acoustic power level for centrifugal compressor is given.

给出了离心压缩机气动参数和结构参数与声功率级之间的内在关系。

3·This paper also studied the influence of acoustic power density, temperature and other parameters on the ultrasonic cleaning through experiment.

通过比对实验分析了驻波和清洗介质的性质对清洗效果的影响。

4·The experimental results have demonstrated that the pressure amplifier not only amplifies the pressure ratio, but also improves the acoustic power.

实验结果表明压力放大器不仅可以放大压力，还能提高负载入口声功和热机的效率。

5·The complex sound field distribution of the focused transducers was calculated by the coordinate transform method, and the acoustic power was measured.

该文应用坐标变换法对该聚焦换能器的复杂声场分布进行了数值计算，并测定了其声功率。

6·The second acquisition protocol USES an output acoustic power sufficient for causing destruction of the contrast agents during ultrasound image data acquisition (10).

第二采集协议采用在超声图像数据采集(10)期间足以导致造影剂破坏的输出声功率。

7·This paper introduces a kind of pulse tube regenerator, which can recover part of the lost acoustic power, and then analyzes it in two aspects:acoustic power recovery and phase angle adjustment.

本文介绍了一种带声功回收的脉管制冷机，从功回收和相位调节角度对它进行了分析。

8·The term efficiency refers to the ability of a speaker system to convert electrical energy (power from the amplifier) into acoustic output.

术语“效率”是指扬声器系统将电能（功放的推力）转化为声音输出的能力。

9·The properties of piezoelectric ceramics at high electric power and hydrostatic pressure are concerned for the application in underwater acoustic transducers.

特别对于水声换能器应用而言，压电陶瓷在大功率高静压力下的性能是人们十分关心的。

10·And also it explains the relations between the system of the motive power and sound producing organs, resonator and speech organs from acoustic point of view.

从声音物理学的角度阐述了身体的发声器官、共鸣器官、语言器官和动力系统的相互关系。