助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   acoustic power 的翻译结果: 查询用时:0.171秒
图标索引 在分类学科中查询
所有学科
工业通用技术及设备
动力工程
物理学
船舶工业
生物医学工程
仪器仪表工业
医药卫生方针政策与法律法规研究
肿瘤学
临床医学
更多类别查询

图标索引 历史查询
 

acoustic power     
相关语句
  声功率
     Ltd (working frequency: 0.7MHz; acoustic power: 200W; focal distance: 135mm; Acoustic focal region: 3×3×25mm3).
     治疗头工作频率 0.7MHz,焦距135mm,焦域 3mm×3mm×25mm,声功率 200W,辐照时间 4 秒,辐照深度 1cm。
短句来源
     A maximum acoustic power 43.1 W output to RC load of 110 cm~3 capacitance was measured with helium filling of 2.1 MPa and heating power of 2 000 W.
     以氦气为工质,在充气压力2.1 MPa、加热功率2 000 W的条件下,采用110 cm3的气库,在1台驻波型热声发动机上获得了最大43.1 W的声功率输出。
短句来源
     Phe intensity of two TE modes (TE0, TE1) varying with the acoustic power is measured.
     实验中,我们测量了两种TE(TE_0,TE_1)模的主要衍射级光强相对声功率的分布,同时给出实用的计算声功率公式:Pa=(4△n~2/n~6P_(3J)~2K)/LP_R。
短句来源
     Fourthly, through k-ε model and broadband noise source model, acoustic power of car was computed and quantity differences in different driving speed were stated.
     第四,为了得到风噪声功率的变化,湍流模型中采用κ-ε模型,利用宽频带噪声源模型法对噪声源声功率进行计算,获得了汽车各位置声功率分布,并计算在不同车速下汽车各部分噪声功率的变化情况。
短句来源
     First , according to the therapeutic acoustic power , forty—eight New Zealand Rabbits were divided into two groups (A , B) randomly and each group was further divided into six subgroups (1s, 3s, 5s, 7s, 9s and 11s).
     以JC型高强度聚焦超声肿瘤治疗系统作为HIFU聚能器。 首先将48只新西兰兔按声功率随机分为A、B组,每组再按辐照时间分为6小组,即1s组、3s组、5s组、7s组、9s组、11s组;
短句来源
更多       
  声功
     The computation reveals that the acoustic power at the inlet of the load is maximum when the resistance is equal to capacitance (the phase difference between p_2 and p_3, is 45 Degree).
     理论计算表明:当声容等于声阻(即p_2和p_3的相位差为45°)时,负载入口声功最大。
短句来源
     Also two important energy forms of thermoacoustic system: acoustic power and total power are discussed in details.
     在此基础上,阐述了热声系统中两种重要的能量形式:声功和总能流,得到了它们的可用公式。
短句来源
     Also acoustic power and acoustic power dissipation theories are introduced in details.
     基于热声效应原理的基础上,阐述了热声学中的声功声功耗散理论。
短句来源
     In addition,the pressure amplifier amplifies both the acoustic power and the efficiency. The efficiency of the experimental system with a 3.45 m-long pressure amplifier rises from 1.45% to 3.32%.
     压力放大器可以提高负载入口声功和效率,在本实验的热声系统中接入3.45 m压力放大器后,热声发动机的效率由1.45%提高到3.32%。
短句来源
     The influences of the different types of resonators(including resonator,cone and compliance) and the different volumes of compliances(10 L,20 L, 40 L) on the phase modulation and acoustic power are analyzed in the regenerator.
     针对不同形式的谐振管(谐振管,谐振腔和容腔),以及不同体积的容腔负载(10 L,20 L,40 L)进行仿真计算。 研究不同条件下,对回热器处的压力和体积流率之间的相位调节作用及声功的影响。
短句来源
更多       
  声能
     Thermoacoustic engine is a kind of machine, which converts thermal energy into acoustic power by thermoacoustic effect.
     热声发动机是一种通过热声效应实现热能与声能转化的装置。
短句来源
     Thermoacoustic engines take advantage of thermoacoustic effect to actualize the transition of thermal energy and acoustic power.
     热声热机利用热声效应实现热能与声能的转换。
短句来源
  声波能量
     Influences of transducer frequency and acoustic power on the measurements of ultrasonic integrated backscatter
     探头频率和声波能量对心肌背向散射积分测值的影响
短句来源
     Objective To investigate the influences of transducer frequency and acoustic power (AP) on the measurements of the magnitude of cyclic variation of integrated backscatter (CVIB).
     目的 观察超声背向散射积分心动周期变化幅度 (CVIB)测值与探头频率及发射声波能量 (AP)的关系。
短句来源

 

查询“acoustic power”译词为其他词的双语例句

     

    查询“acoustic power”译词为用户自定义的双语例句

        我想查看译文中含有:的双语例句
    例句
    为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
      acoustic power
    It is found that the pressure disturbances within the tube can grow very large and also the acoustic power which is indicated from the outlet of the tube can be much larger than the power input owing to the forcing pressure oscillation.
          
    A very narrowband interaction of only 130 kHz (0.31 nm optical bandwidth) was achieved with about 25 mW acoustic power for 96% conversion efficiency.
          
    Results show a significant reduction (as much as 80%) in acoustic power with reasonable computational cost using several shape parameters.
          
    In this way oil cooling capacity approaches that of water with a specific acoustic power of 0.1 W/cm3 and an oil consumption of 45 liters/min.
          
    Determination of acoustic power levels of machines under service conditions
          
    更多          


    By means of optical diffraction from acoustic Waves, we have detected the distribution of acoustic fields and their inverse phase velocity surfaces excited by the interdigiter transducer deposited on the surface of certain cut at crystals such as LiNbO_3 and quartz. Three experimental techniques were used: the simple optical probing, the dark field imaging and the visualization of inverse phase velocity surfaces. The asymmetry of acoustic power flux between the right and left acoustic ports from...

    By means of optical diffraction from acoustic Waves, we have detected the distribution of acoustic fields and their inverse phase velocity surfaces excited by the interdigiter transducer deposited on the surface of certain cut at crystals such as LiNbO_3 and quartz. Three experimental techniques were used: the simple optical probing, the dark field imaging and the visualization of inverse phase velocity surfaces. The asymmetry of acoustic power flux between the right and left acoustic ports from the emitted linear FM interdigital transducer may be observed directly. The energy profile of acoustic field and some inverse phase velocity surface of both surface and bulk acoustic waves generated by the interdigital transducer are studied primarily and discussed briefly.

    本文介绍了利用声波引起的光衍射现象研究在铌酸锂晶体和石英晶体的某些切割表面的叉指换能器所激发的声场分布及其倒速度图。所采用的实验方法有简单光探针技术,暗场法以及倒速度图显示等三种。分别对线性调频叉指换能器向两端辐射声功率流的不对称性、叉指换能器激发声场的能量分布以及叉指换能器激发各种声波的倒速度图进行了初步的研究和简单的讨论。

    By means of optical diffraction from acoustic Waves,we have detected the distribution of acoustic fields and their inverse phase velocity surfaces excited by the interdigiter transducer deposited on the surface of certain cut at crystals such as LiNbO_3 and quartz.Three experimental techniques were used.the simple optical probing,the dark field imaging and the visualization of inverse phase velocity surfaces.The asymmetry of acoustic power flux between the right and left aconstic ports from the emitted...

    By means of optical diffraction from acoustic Waves,we have detected the distribution of acoustic fields and their inverse phase velocity surfaces excited by the interdigiter transducer deposited on the surface of certain cut at crystals such as LiNbO_3 and quartz.Three experimental techniques were used.the simple optical probing,the dark field imaging and the visualization of inverse phase velocity surfaces.The asymmetry of acoustic power flux between the right and left aconstic ports from the emitted linear FM interdigital transducer may be observed directly.The energy profile of acoustic field and some inverse phase velocity surface of both surface and bulk acoustic waves generated by the inter- digital transducer are studied primarily and discussed briefly.

    本文介绍了利用声波引起的光衍射现象研究在铌酸鋰晶体和石英晶体的某些切割表面的叉指换能器所激发的声场分布及其倒速度图。所采用的实验方法有简单光探针技术,暗场法以及倒速度图显示等三种。分别对线性调频叉指换能器向两端辐射声功率流的不对称性、叉指换能器激发声场的能量分布以及叉指换能器激发各种声波的倒速度图进行了初步的研究和简单的讨论。

    The acoustic power of high intensity sound sources reached kilowatts and thes of kilowatts. Many are the sources of modulated air flow. It is somewhat difficult to use the method for measuring usual sound sources to measure high intensity sound sources. As an example, in the method of progressive wave tube, the end of tube must have an exit for air flow, and the absorbers at the end of tube may be under acoustic fatigue easily. When the reflection coefficient at the end reached 0.25, the variation...

    The acoustic power of high intensity sound sources reached kilowatts and thes of kilowatts. Many are the sources of modulated air flow. It is somewhat difficult to use the method for measuring usual sound sources to measure high intensity sound sources. As an example, in the method of progressive wave tube, the end of tube must have an exit for air flow, and the absorbers at the end of tube may be under acoustic fatigue easily. When the reflection coefficient at the end reached 0.25, the variation of sound pressure level in tube can-be as much as 2.5 dB,' and therefore the results have large errors for measuring power. The method presented in this paper permits presence of reflection from the end of tube, and the acoustic power of sound sources is derived from sound pressure level at three location in tube. Analysis proves that the resulting error from the variation of sound field in tube is less then 0.2 dB, when the reflective coefficient at the end is 0.25. The results for 2K sound watts electropneumatic loudspeaker are in agreement for three groups of different measuring points, although reflective coefficient reaches 0.6. In general the error of the results is less then 0.6 dB. The advantages of this method are simpler eguipments and exact results.

    目前强声源的输出声功率达几千瓦甚至几万瓦,它们多数是气流声源,因此用通常的方法测量它们的声功率会遇到困难,例如对于行波管法,终端吸声处理比较困难,而当终端反射系数达0.25时,声场起伏有2.5dB,测量误差较大。本文利用声在管中传播的基本原理,提出由管中纵向分布的三点声压确定声源声功率的方法,这个方法允许管终端存在反射。误差分析指出,终端反射系数为0.25时,声场起伏引起的测量误差小于0.2dB,对两千声瓦电动调制气流扬声器的实际测量表明,当反射系数高达0.6时,多次测量(各次测量时管中纵向分布的三点位置各不相同)结果比较一致,偏差小于0.6dB。证实这种方法具有设备简单,结果准确的优点。

     
    << 更多相关文摘    
    图标索引 相关查询

     


     
    CNKI小工具
    在英文学术搜索中查有关acoustic power的内容
    在知识搜索中查有关acoustic power的内容
    在数字搜索中查有关acoustic power的内容
    在概念知识元中查有关acoustic power的内容
    在学术趋势中查有关acoustic power的内容
     
     

    CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
    版权图标  2008 CNKI-中国知网
    京ICP证040431号 互联网出版许可证 新出网证(京)字008号
    北京市公安局海淀分局 备案号:110 1081725
    版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社