查询词典 sound board

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。

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。

Company production of "xing up" brand acoustic board, gypsum board ceilings calcium, high-crystalline calcium silicate board, ceiling and other products for its outstanding performance and noble quality, as favored by the majority of customers, products sold at home and abroad.

公司生产的"兴远达"牌、"益飞"牌吸音板、硅钙天花石膏板、高晶硅钙板、天花板等产品更以其卓越的性能和高贵的品质，为广大的客户所青睐，产品畅销国内外。

An upright piano includes a fall-board (12) hinged to a upper sill (10f) and connected through a pair of flexible coupling (13) to side arms (10b), and each of the flexible couplings has a rotary damper (13b) embedded in the side arm and an Oldham's coupling (13a/ 13c/ 13q) connected between the fall-board and the rotary damper so that the Oldham's couplings take up misalignment between the rotational axis (AX1) of the fall-board and the rotational axes (AX2) of the rotary dampers.

一种立式钢琴包括铰接在上部横梁（10f）上、并利用一对挠性联轴节联接在所说侧臂板（10b）上的一个落式盖板（12），每个挠性联轴节具有嵌埋在侧臂板中的一个旋转阻尼器（13b）和联接在落式盖板与旋转阻尼器之间的一个奥德海姆联轴节（13a／13c／13q），从而奥德海姆联轴节可以消除落式盖板的旋转轴（AX1）与旋转阻尼器的旋转轴（AX2）之间的对准误差。

As I took a step to the new board, my foot didn't hit the board right and my heel slipped on the edge of the board.

正如我了一步到新的董事会，我的脚没有击中董事会的权利，我的脚后跟板的边缘下滑。

Based on the special treatment system and the literature of manager turnover, the paper designs a proxy to measure board overconfidence . Then the paper empirically analyses the effect of board overconfidence on supervision efficiency of the board and the performance of companies.

本章首先基于中国上市公司特别处理制度，在董事会与管理者变更的文献基础上，构建了董事会过度自信的度量指标，实证检验了董事会过度自信是否影响了董事会的监督效率，进而影响了公司业绩。

Shares of the board of supervisors agreed to elect汤彰Dong-ming, chairman of the company;肖荣智appointment as general manager of the company; appointment Shunpei pool for the company's board of directors secretary; elections for the Board of Supervisors Chairman Zhao.

000158的股份监事会同意选举汤彰东明，该公司董事长；肖荣智委任为公司总经理，任命俊平为公司董事会秘书池；选举为监事会主席赵局。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。