查询词典 acoustic

A real time signal acquisition and processing system for localizing and tracking helicoper with passive acoustic is introduced.

介绍了反武装直升机被动声定位跟踪系统中直升机噪声信号实时采集与处理系统的设计。

Fourier Transform infrared Spectroscopy and Acoustic Emission and lyses of Short glass fiber/R-PVC ComPOSities nere mace. The structure difference of untreated and coupling treated glass fiber/R-PVC comPOSities were studied by the faIR.

短玻璃纤维／R─PVC复合材料的红外光谱和声发射分析叶林忠，郑鲁光，赵连军，吴其晔摘要：报道了短玻璃纤维／R－PVC复合材料的傅里叶变换红外光谱和声发射分析。

We can see from the numerical results of the improved exhaust system in acoustic and fluid fields that: the improved design succeeds in increasing the attenuation performance and reducing the pressure loss and meliorating the aerodynamic quality.

改进后的流场和声场分析结果表明：改进设计使得排气系统的空气动力特性、低频、高频消声特性等方面都较原结构有所改善，达到了预期改进目标。

In our experiments,the propagationvelocity and the coupling coefficient for the high-velocity surface acoustic mode ismeasured on a free surface as well as on a metalized surface.

在实验中，采用四种经常使用的压电晶体，对这种表面高速模式进行声速和耦合系数的测量，分别在自由表面和金属化表面进行。

In terms of application, the Air Montserrat Pre is the optimum choice for ambient recording, while the 1081 offers the perfect response for close miking of vocals, acoustic instruments, and percussion.

在应用方面，空中蒙特塞拉特前是环境录音的最佳选择，而1081提供了对完美的演唱结束拾音反应，原声乐器和打击乐器。

By the '90s, Tibet 's output and style changed slightly: his productivity slowed somewhat, and the sound grew more subdued, encompassing acoustic folk in its most sinister permutations.

现实生活的空虚和孤独源自于谎言和不信任，这些都是Tibet所不愿看见的。

Schwannomas and neurofibromas can exhibit posterior acoustic enhancement and hyperemia Fig.

雪旺氏细胞瘤和神经纤维瘤呈现出后部回声增强和充血（Fig19）。

Objective:To study MRI appearances and characteristics of acoustic neuromas.

目的：研究听神经瘤的MRI表现与特征。

Abstract］ Objective To study MRI appearances and characteristics of acoustic neuromas.

摘要］ 目的研究听神经瘤的MRI表现与特征。

He said the results suggest there is no major risk of acoustic neuromas in the first ten years of using cell phones.

他说结果表明在使用无线电话的前十年，听神经瘤的产生和无线电话的使用之间没有显示出明显的关联。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。