环境噪声

The damping composite structures with three-layered damping materials were prepared. The damping properties were studied with the finite element method.

随着现代科学技术的发展，人们对工作和生活环境的要求也越来越高，振动和噪声的控制日益成为一个复杂而迫切的问题。

It can be used in measuring the dynamic information of the high rotational speed gear transmission system.

采用红外线作为传输媒介，克服了在高速旋转，且环境背景噪声大的齿轮传动动态信息传输失真的问题。

It is indicated that negative effects on human perception performance especially on motion and space performance are produced after exposure to noise in this experiment.

表明在本实验的噪声环境条件下，对人的感知觉能力特别是运动知觉和空间知觉能力产生了负性影响。

Not only does it aim to make you appreciate and feel the raw music, but it is also aesthetically very pleasing with its black sheep skinned leather earpads and silver metal finishes.

该款耳机有一定的噪声消除能力，已经公开发布了三星j708主题下载但不会强大到让你完全听不清楚周围环境的声音。

The first part is to recognize the weld seam position in real welding environment there exists strong noises.

第一部分工作，主要是在具有强烈噪声干扰的实际焊接环境中准确识别焊缝位置。

Within salt-and-pepper noise image de-nosing experiments results demonstrate that the extended Basis Pursuit model can provide better de-noising results.

实验结果表明，本文方法在椒盐噪声环境下具有显著的去噪效果。

In some cases vibration and noise of PGT will have a great influence on reliability and life-span of the system.

在某些重要的应用场合，行星齿轮传动的振动和噪声是影响系统的可靠性、寿命与操作环境的关键因素。

Based on an Lshape array, a novel method for estimating twodimensional direction of arrival was presented.

提出了一种在高斯白噪声环境下基于L型阵列的二维DOA估计的新方法。

Is a joint venture joint-stock enterprises, mainly engaged in high noise environments instructions call PA system development, production and sale.

北京罗可恩科技有限公司是一家股份制合资企业，主要从事于高噪声环境下的指令扩音呼叫系统的研制开发、生产及销售。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。