查询词典 dimensional sound

The frequency characteristics of instant- taneous signal of main abnormalities in diesesl engines,including valve sound, piston pin sound,connecting rod bearing sound and sound from the main bearing of crankshaft are analyzed.

从使用角度出发，采用频域分析法，分析了柴油机中气门、活塞销、连杆轴承、曲轴主轴承等部位主要异响的瞬态信号频率特征。

This paper has analysed the range of the sound of shadow areas of the embankment, and has proposed the judgement formula that decide whether the momtored point is in the sound shadow areas of the embankment or in the sound shining areas. Finally, the paper gives the revision method of the monitor value when the monitored point is in in the sound shining areas of the embankment.

本文分析了路堤屏障作用的范围，提出监测点在声影区还是在声照区的判断公式，并提出了监测点在声影区时对监测值的修正方法。

Sound intensity is defined as the sound power per area in the process of the sound wave promulgation. Its direction is the same as the direction of sound wave promulgation.

声强的定义为声波传播过程中空间单位面积上传输的声功率，它的指向是声传播的方向。

All in all, USB sound card with built-in sound card, especially the AC'97 onboard sound card compared to the soft, the biggest advantage is that it can get better quality output, but the limitations inherent USB bus than the soft-board sound not suitable for card games such as System of CPU resources and the urgency of the application bandwidth requirements.

总而言之，USB声卡与内置声卡特别是板载的AC'97软声卡相比，最大的优势就是能够获得更好的音质输出，但受USB总线先天不足的限制，比板载软声卡更不适合游戏之类对CPU资源和系统带宽需求迫切的应用。

CD. A1 Free Sound Effects ist eine Klang-Material kostenlos in englischer Sprache Website, Klassifizierung umfasst eine Vielzahl von alltglichen Gerusche, wie Tiere, Schlüssel, Zeichen, Sport, Wetter, so dass die Sound-Effekte, whlen Sie auf der rechten Seite auf Free Sound Effects sehen knnen, zustzlich die Website verkauft auch eine Reihe von CD-Sound-Effekte.

A1 Free Sound Effects 是一个英文的免费声音素材网站，分类包含了日常生活中的各种声音，例如动物、按键、人物、运动、天气等等的音效，进入后选择网站右方的Free Sound Effects 就能看到，此外，这个网站也贩售一些音效效果

In this study,we took a measurement of sound pressure distribution, sound field variability, and effects of frequency shift on sound pressure levels at reference points of pure tone in the diffuse sound field.

本文通过对纯音声压分布、声场变异以及频率漂移对参考点声压级影响的研究发现，扩散场中纯音声压分布的均匀性虽不如啭音，但在某些范围其能量仍可充分扩散，这些区域声场测试结果受受试者头位改变和／或频率漂移影响轻微。对20名重度感音神经性耳聋患者的测试结果证实了上述结论。

Different models for different structure sections are established, namely, one-dimensional piping model for laneway or large hole, two-dimensional structure plane model for absciss layer and contacting weathering zone, three-dimensional seeping fracture section model.

分区建立了采空区不同注浆结构部位的理论模型，包括采空区空洞或巷道的一维"管道"模型、离层与接触风化带等结构面二维模型、导水裂隙带三维模型。

Using the substitution-elimination method affine algebraic variety can be resolved to pure d-dimensional subvariety and expressed by an algebraic hypersurface on d+1-dimensional space with a sequence of elimination-polynomial systems. All 0-dimensional solution can be found, too.

利用变换消元法可以把代数簇分解成纯d维的子簇，并把代数簇表示为d+1维子空间上的超曲面形式和一系列的消元多项式组，且能求出全部孤立解，同时给出了算法及其在多项式因式分解中的应用。

The system can receive and pretreat the discrete data of TXT format, realize different pattern three-dimensional visualization of line, different color and texture, etc. and has the functions of real time dynamical browse, three-dimensional coordinates query, grid data and three-dimensional figure export etc.It has too the functions of three-dimensiona contrastive figure drawing and contrastive data export of alterant riverbed terrain.

该系统能够接受TXT格式的离散数据并进行预处理，实现线框、不同设色、光照、纹理映射等不同模式的三维河床地形可视化，具有实时动态浏览、三维坐标查询、网格数据及三维图形输出等功能；同时，还具有河床地形冲淤变化前后叠加三维对比效果图的绘制以及对比数据的输出等功能。

Herein, a self-assembly system with polymer pattern of lower molecular weight polyaerylie acid have been built up, in which some nanosized complex was synthesized, including nanosphere of Pb-PAA, one-dimensional nanorod of CuS-PAA and PbS-PAA, one-dimensional helix nanochain of PbSO4-PAA, and one-dimensional reticulate nanofibres of PbCr2O7-PAA. The mechanism was discussed preliminarily, the important action of the bone angle torsion as well as the ""contact bridge"" served by ion in the course of self-assembly was proposed for the first time.

本文以低分子量聚丙烯酸为高分子模板构建自组装体系，首先合成了几种特殊形态的纳米配合物，包括纳米微球Pb-PAA、一维纳米棒CuS-PAA和PbS-PAA、一维螺旋纳米链PbSO_4-PAA及一维有序纳米纤维网络PbCr_2O_7-PAA，初步讨论了该自组装体系的合成机理，首次提出了键角张力和分子的"搭桥"作用在自组装过程中的作用。

He improved last year's winning time by nearly half a minute.

他改进去年的获奖时间，将近50分钟。

He spoke to me in a lofty manner.

他用傲慢的语气对我说话。