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the acoustic characteristics
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  声学特征
     The preliminary results of the investigations into the acoustic characteristics are given. The vibration and noise levels of this type of electromagnetic pumps for such cooling system are fairly low.
     声学特征的初步研究结果表明:这种冷却系统 的电磁泵的振动级和声级都相当低。
短句来源
     2. To investigate the acoustic characteristics of the laryngostenosis patients and offer more objective information about laryngeal functional evaluation for clinical therapies.
     (2)研究喉狭窄患者嗓音的声学特征,为临床治疗提供更多喉狭窄功能状态评估的客观资料。 方 法1.正常成人嗓音分析参考值确立
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     Offer references to the design and improvement of the maxillary partial denture. Methods: Use the computer speech lab(CSL), analysis the acoustic characteristics of 12 maxillary Kennedy I dentition defect patients, before and after the restoration of the partial denture at the beginning, 1week,2weeks,4weeks and 8weeks.
     方法:应用计算机语音分析系统,分析12例上颌肯氏Ⅰ类牙列缺损患者可摘局部义齿初戴前、初戴时、初戴后1、2、4、8周的声学特征
短句来源
     So I observed the acoustic characteristics of glottal stops produced by patients with cleft palate and compared them with the normal peers, trying to provide some evidences for clinical diagnosing and treatment.
     本研究旨在探讨腭裂患者喉塞音的声学特征,期望为临床上正确诊断喉塞音,客观评价语音治疗的效果提供依据。
短句来源
     Objective observe the acoustic characteristics of glottal stops produced by patients with cleft palate and compare them with the normal peers,trying to provide some evidences for clinical diagnosing and treatment.
     目的探讨腭裂患者喉塞音的声学特征,期望为临床上正确诊断喉塞音,客观评价语音治疗的效果提供依据。
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  “the acoustic characteristics”译为未确定词的双语例句
     Voice conversion is a method which transforms the source speech to a speech signal with the acoustic characteristics of the target speaker.
     源-目标说话人声音转换是一种变换说话人声音特征的技术,它将源说话人的声音转换成目标说话人的声音.
短句来源
     Voice conversion is a method which transforms the source speech to a speech signal with the acoustic characteristics of target speaker.
     源-目标说话人声音转换是一种变换说话人声音特征的技术,它将源说话人的声音转换成目标说话人的声音。
短句来源
     Study of the Acoustic Characteristics of Electromagnetic Pumps
     电磁泵声学特性研究
短句来源
     To quantitatively evaluate the acoustic characteristics of glottal stop, pronounciation of/ka/in 10 normal subjects and 14 patients with cleft palates were analyzed by sound spectrography and 20 msec in all normal articulation of /ka/ with an average time of 44- 6 msec. In the test group of /ka/ demonstrated an average time of 20. 8 msec .
     为了评价声门爆破音的音声特征,对10名正常语音者和14名腭裂术后及其他语音障碍患者的异常语音—/ka/,用语图仪、微电脑、听觉心理评定方法进行了研究,结果表明:正常语音组/Ka/的起声时间(下称VOT)值都大于20msec,平均是44.6msec,语音障碍组明显小于正常组,平均VOT值仅20.8msec。
短句来源
     On the basis of the analysis of the acoustic characteristics of a tractor cab and contribution of main noise sources of the tractor to drivers ear noise, a series of multiple measures such as the sound insulation, the improvement of cab isolators, the sound absorption and the control of some noise sources, has been used to reduce the noise,and a good result of reduction of ear noise by 10.8 dB(A) was obtained.
     在对拖拉机驾驶室声学特性及噪声源进行分析的基础上,通过隔声、减振、吸声和控制部分噪声源等综合降噪措施,取得了降低驾驶员耳旁噪声10.8dB(A)的良好效果
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  相似匹配句对
     The characteristics of G.
     论文首先对语音编码的各种方案进行了比较,并对G.
短句来源
     Characteristics of acoustic emission of rocks
     岩石声发射特性的研究
短句来源
     characteristics;
     三、发展的特点;
短句来源
     And the characteristics of the G.
     通过仿真和实验,也验证了G.
短句来源
     Study of the Acoustic Characteristics of Electromagnetic Pumps
     电磁泵声学特性研究
短句来源
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  the acoustic characteristics
The acoustic characteristics of a semi-infinite tube of constant cross sectionσ, fitted with a semi-infinite conical flange of solid angleω, are investigated.
      
An Experimental Investigation into the Acoustic Characteristics of Fluid-filled Porous Structures-A Simplified Model of the Huma
      
1.It was established that the chemical composition of electrodes affects the acoustic characteristics of an electric discharge.2.The results obtained make possible certain quantitative estimates of the plasma state of matter.
      
Synoptic variability of the acoustic characteristics in tropical Atlantic waters
      
By recording the acoustic characteristics it is possible to detect sections of castings subjected to static deformation or thermal shock.
      
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Chime bells are the important musical instruments in ancient China. The acoustic characteristics of chime bells have been studied by the measurements of vibration modes and the power spectra of the bell sound. It is found that each of the chime bells has two pitches of sound depending on the striking positions on the bell. The measurement of vibration modes shows that at these two pitch frequencies the modes of vibration are similiar, but the positions of nodal lines are different. Exciting the bell at...

Chime bells are the important musical instruments in ancient China. The acoustic characteristics of chime bells have been studied by the measurements of vibration modes and the power spectra of the bell sound. It is found that each of the chime bells has two pitches of sound depending on the striking positions on the bell. The measurement of vibration modes shows that at these two pitch frequencies the modes of vibration are similiar, but the positions of nodal lines are different. Exciting the bell at steady-state condition, the natural frequencies from which the pitch frequencies can be determined are measured. The method of tuning as used by the ancients is paring off the inner surface near bell edge along the nodal lines. This is a reasonable method for separate tuning of each tone. The short-time sound spectra of chime bells are measured by the use of FPT. From the spectrum analysis tone quality of bell is obtained. The sound of chime bell can also be analyzed by the method of linear prediction used in signal processing. The accuracy of pitch frequency obained by this method is high.

编钟是中国古代的重要乐器。通过对模型编钟振动方式、共振频率和声频谱的测量来分析编钟的声学特性,证实了编钟是发两个基音乐音的乐器,阐明了决定敲钟位置和古人调音方法的声学原理。用FFT做实际和模型编钟声的短时频谱分析,应用了信号处理中线性预测等方法来分析编钟声,实验表明用线性预测法计算基音频率是有足够高的准确度的。

From the angle of bionics of animal sonar system, this paper discusses the function of acoustie lens of the melon of Lipotes Vexillifer. Based upon the theory of the dome of underwater transducer we make the following suggestions: (1) the density (ρ) and the acoustic wave impedance of the melon can be changed so as to get the maximal transmission of energy for the emission of different kinds of signals. (2) the shape and the curvature of the. melon can be changed so as to get the necessary pattern of emitted...

From the angle of bionics of animal sonar system, this paper discusses the function of acoustie lens of the melon of Lipotes Vexillifer. Based upon the theory of the dome of underwater transducer we make the following suggestions: (1) the density (ρ) and the acoustic wave impedance of the melon can be changed so as to get the maximal transmission of energy for the emission of different kinds of signals. (2) the shape and the curvature of the. melon can be changed so as to get the necessary pattern of emitted beam in dolphins' locating, communicating and hunting activities. The sceond part of the paper describes the preliminary results of a measurement of the acoustic characteristics of a piece of the melon of Lipotes Vexillifer.

本文包括两部分。第一部分是从生物声纳仿生学角度,讨论了白暨豚声发射中,关于额隆的透声作用并从设计水声换能器导流罩全透射基本理论出发,提出两点设想: (1) 额隆的密度(ρ)可变,即波阻抗(Z=ρC)可变,以适应在发射不同类型信号时,都得到能量的最大传输。 (2) 额隆的形状可变,即曲率可变,以适应在定位、通讯,觅食中所需的发射方向特性。第二部分是对1980年2月1日至2月4日在我院消声水池(4×5×8M~3)中,对白暨豚额隆进行声学测量作出的初步服告。

The spatial filtering of modes is very important both for theoretical purpose and practical purpose. Spatial filtering of modes is a main approach to verify the normal-mode theory and it is also the foundation to realize the field matching in the wave guide. It will have an important application in the investigation of the interaction between the sound wave and some environment factors such as the acoustic characteristics of ocean bottom, internal waves… etc, because the process of separated mode is simpler...

The spatial filtering of modes is very important both for theoretical purpose and practical purpose. Spatial filtering of modes is a main approach to verify the normal-mode theory and it is also the foundation to realize the field matching in the wave guide. It will have an important application in the investigation of the interaction between the sound wave and some environment factors such as the acoustic characteristics of ocean bottom, internal waves… etc, because the process of separated mode is simpler than the point source.

在侧壁无消声的波浪槽(70×2×0.6m~3)内,利用9根有水平指向性的长圆管换能器作阵元,实现了前四号简正波的空间过滤,定性地研究了简正波过滤阵抑制近场点源干扰的理论概念,并对起伏波浪表面对各号简正波振幅起伏的影响作了初步观察。

 
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