和声学

Due to unaccessible, the sea floor is studied by acoustical and geological methods.

由于人们无法直接接触海底，对其研究绝大多数是事后借助于声学和地质学调查手段进行。

Based on the requirement of the multifunctional gymnasiums, this article expatiates theoretically and practically on the acoustic design.

本文既是根据现在多功能体育馆的使用要求，从理论、实践两方面介绍了体育馆的声学设计—包括建声设计和电声设计两方面。

This paper deals with the acoustics of ancient Greek and Roman theatres as it merges from an extensive investigation carried out within the ERATO project ( Identification Evaluation and Revival of the Acoustical Heritage of Ancient Theatres and Odea) financed by the European Commission.

论述了古希腊与古罗马的剧场音质。该研究是由欧共体资助的ERATO项目&古代剧场和表演场所声学遗产的鉴定、评价与振兴&的一部分。该项目对古希腊与古罗马剧场进行了较详尽的调研。

Ultrasonic tissue characterazation can assess pathological changes of myocardial tissue based on detecting and quantitating the acoustic properties of myocardium .

超声心肌组织定征技术(ultrasonic tissue characterization，UTC)是通过对心肌物理状态的变化即声学特征改变的检出和量化来判断心肌细微组织病理变化的方法。

voice acoustic analysis and EGG can provide an objective quantized index for the diagnosis of laryngeal carcinoma.

嗓音声学分析和电声门图可为喉癌的诊断提供客观的量化依据。

This may have been improved following the modernisation refits of the submarine in the late 1990s, which saw the surface of the submarine being covered with acoustic tiles to reduce the acoustic signature, and the introduction of the more advanced wire-guided anti-submarine torpedo and possibly submarine-launched YJ-8 anti-ship missile too.

这可能已经随着潜艇在1990年后期中的现代化改装中被改进，看到潜艇表面覆盖消声瓦减少声学特征，引进更先进的线导反潜鱼雷和也可能有潜射YJ-8反舰导弹。

The acoustic phased arc array transmitter can be used in azimuthal acoustic reflection logging. It evaluates the azimuthal variation of borehole formation acoustic properties, which is useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器用于方位反射声波测井新技术中，可评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

The acoustic phased arc array transmitter can be used in azimuth acoustic reflection logging and evaluate the azimuth variation of acoustic properties in the borehole formation and also be useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器可用于方位反射声波测井新技术中，能评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

Numerical simulation of the discrete noise in an axial-flow fan was performed by utilizing the method of CFD in conjunction with CAA.

采用计算流体动力学和计算声学相结合的方法，对轴流式通风机的离散噪声进行了数值模拟。

Electro-acoustic components for communications professionals and accessories factory, over the years you承蒙industry cooperation and Tixie, our products have covered the full range of electret condenser microphone, holding the first high-fidelity audio and microphone, all kinds of micro - Speakers and receiver, and the full range of hands-free stereo headset, Xiankong Qi, and other accessories, such as piezoelectric acoustic devices.

做为通讯电声元器件及配件的专业制造厂，多年来承蒙业内诸位的合作与提携，我们的产品已涵盖了全系列电容式驻极体麦克风、手持高保真音头和麦克风，各种微型喇叭及受话器，全系列立体声及免提耳机，线控器等配件、压电声学器件等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。