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- acoustic parametric source 声参量源
- So the acoustic parameters must be known if the anechoic tile is demanded to be designed almost perfectly. 针对越来越高的要求,要设计好符合要求的消声瓦,需要了解其制作材料在不同频率下的声学参数。
- Result: There is difference among the group of age,sex and vowel in most acoustic parameters in the adults. 结果: 多数指标存在年龄差异、性别差异和音别不同。
- Nonlinear acoustic parameter B/A of biological media such as heart, liver, spleen, kidney, muscle, fat, bile and urine had been measured. 本文应用相对测量法,并加入衰减与衍射修正,测量与研究了高声衰减生物媒质的非线性声参量B/A。 结果表明:心、肝、脾、肾、肌肉组织的B/A值为7左右;
- This paper presents a quantificational evaluation to a specified high standard odeum via measuring on some main acoustic parameters. 通过对一个演出规格较高的音乐厅主要声学客观参数的测试,给出了该音乐厅定量的音质评价。
- The acoustic parameters and the score value taking from the patients with laryngeal cancer were higher than those from patients with vocal polyp (P<0.01) . 喉癌患者主要嗓音声学参数基频微扰、振幅微扰、规度化噪声能量均明显高于声带息肉患者 (P <0 .;0 1) ; 其计分值也明显偏高 (P <0
- The discrimination of sugar type through acoustic parameter and density was also compared, and it was found that ultrasonic measurement was better for sugar type discrim... 探讨了声特性与糖分子结构以及糖分子与水分子的水合作用与超声参量之间的关系,表明超声参量可用于对糖溶液物化特性的研究。
- The news comes from a reliable source. 这消息来自可靠的来源。
- The author,on the basis of acoustic theory,not only approaches some importantqualifications and design procedures required by language recording room for acoustic quality, butthrough calculation chooses out the ideal acoustic parameters. 根据声学理论探讨了语言录音室对音质要求所需确定的重要技术指标和设计方法,并通过计算选出最理想的声学参数。
- The second study is about acoustic parameters which can contrast accent from non-accent.The final study aims to provide basic sentential intonation, including four different sentence types. 过去撒奇莱雅语的研究甚少,除了基本句型和音韵介绍外,甚少有更近一步的研究。
- In the design of closed box, vented box and passive box loudspeaker systems, the tight matching relationship between TS parameters of drivers and acoustic parameters of boxes is realized. 摘要在闭箱、开口箱、被动辐射体箱和带通箱系统的设计中,人们已认识到单元的TS参数和箱体的声学参数有紧密的配合关系。
- The numeric solution!of hyperbolic equation by FEA indicates that the deductions should comply with the acoustic parameters such as sound velocity, vibration range, wave shape etc. 波动方程的有限元数值解表明 ,在锚杆灌浆体内部缺陷的探测中可用声速、幅值、波形等声参数作为判断的依据。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- Transmission equation of acoustic wave in layered media is given.By numerical calculation, the effects of acoustic parameters of each layer on the sound wave reflection and attenuation is analyzed. 摘要本文给出了声波在多层介质中的传播方程,通过数值计算,分析了各层参数对分层吸声结构声学性能的影响规律。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- The groundwork or source of something. 基础,根源某事物的基础工作或根源
- Where is the source of the Rhine? 莱茵河发源于何处?
- He's been a source of discord and worry. 他成为不和和烦恼的根源。