声学

Of or relating to the science of acoustics .

属于或关于声学科学。

Research Center,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China

中国科学院声学研究所国家网络新媒体工程技术研究中心，北京 100190

It is a basic task of ocean acoustics to research the influence of ocean environment on sound propagation.

研究海洋环境对声传播的影响是海洋声学的基本任务之一。

The product widely used in the field of architectural acoustics.

该产品广泛使用于建筑声学领域。

The acoustics is a branch of physical.

声学是物理学的一个分支。

Widely used in acoustics, optics and wireless technology.

广泛应用在声学、光学和无线电技术等方面。

Objective To evaluate the clinical application value of using acquisition densitometryto assess the lesion of myocardium in patients with hypertension.

目的 探讨声学密度定量技术评价高血压性心脏病心肌组织特征的临床价值。

Objective To eva luate the clinical application value of using acquisition densitometryto assess the lesion of myocardium in patients with hypertension.

目的 探讨声学密度定量技术评价高血压性心脏病心肌组织特征的临床价值。

Based on＂The Data Bank System of the Standard Phonetic Features of Different Level in PSC＂, the thesis analyzes the variants of affricative versus fricative in syllables: z, c ,s - zh, ch, sh - j, q, x which are obscure in physiology; analyzes timbre phonetic variants aroused from the different match of seven main simple vowels and initials as well as the tonal patterns with the help of drawing the synthetic spectrograph and pitch spectrograph. So that the data can be offered to describe phonemes in 396 syllables in common use according to the acoustic analysis.

本文在"普通话水平测试各等级标准语言特征数据库系统"的支持下，通过制作396个常用音节语音样本的音高图和综合语图，考察在普通话教学和测试中从生理角度难以准确把握的一组仅有细微差异的塞擦音和擦音声母z、c、s-zh、ch、sh-j、q、x在音节拼合中的变体；考察7个主要单元音在与不同声母拼合构成的音节中音质上的变化模式；考察四个声调的变化形式，力图从语音声学物理特征角度的分析中为普通话常用音节音位语音规范度的描写提供客观的数据说明。

The term "airwave" comes from the fact that human speech, in its native form, is an acoustic means of communications which makes use of the physical matter in the air to conduct compression waves.

术语"airwave"来自人的话音，其本来的形式是一种声学通信方法，利用空气中的物理介质传输压缩波。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。