查询词典 noise elimination

There is no noise elimination measure and noise standards to AHU, air supply unit, exhaust fans.

4空调机组、新风机组、排风机均无消声措施及噪声指标。

In this article,the analysis of the complex principle and the experiment that has been done are described,The influence of complex on noise elimination has been confirmed by the examples.

研究了复合结构的原理及实验，通过实例说明复合结构对消声的影响。

When it is applied to pipeline noise elimination and panel sound absorption, the bandwidth will be much wider than one Helmholtz resonator.

研究了一类低频宽带共振吸声结构，该结构由多个带伸长瓶颈的亥姆霍兹共振器组成，可应用于管道消声和壁板吸声，达到低频宽带吸声的目的。

The application of adaptive noise-elimination in laser collimation technology is discussed. The model and algorithm of the adaptive filter are also presented.

探讨了自适应除噪技术在准直技术中的应用，给出了自适应滤波器的数学模型和相应算法。

The products adopt cooling tower specified moter,fan and specific water drenching noise elimination techonology,attained leading level in the country.

采用冷却塔专用电机，风机和独特的淋水消声技术，噪声指数处于国内领先水平。

High resolution processing in 3D seismic data is a systems engineering. After our country working hard the technique has been preponderant internationally, such as energisation of field acquisition, incepting and REC, noise elimination, static correction, deconvolution,imaging by excursion and so on. These applied techniques have been suited with high resolution seismic prospecting.

高分辨率三维地震勘探技术是一项系统工程，我国经过多年的技术攻关，该项技术已处于国际前列，如在野外采集中的激发、接收和录制技术等方面，以及处理中的去噪、静校正、反褶积和偏移成像等方面，已经形成与高分辨率地震勘探相配套的实用生产技术。

This paper,through measuring and analyzing the noise sources in the hot-dip galvanization workshop of a steel tube plant,indicated that the operation of inner blowing tube is the major environmental source of noise pollution,studied the mechanism of air current noise for blow pipe,put forward comprehensive administer steps with sealing cap,pressure reduction,noise elimination and noise insulation.

噪声治理工程初步实施结果表明，内吹管噪声瞬时峰值降低了10~15dB，厂界噪声瞬时峰值降低了20dB以上，收到了良好的工程效果。

Based on the thorough study of sources and characteristics of the three errors in laser collimation technology, an error correction method by integrating multi-point detection, multi-variant polynomial step-by-step regression analysis and adaptive noise-elimination is proposed. The influences of beam drift, bending and whipping are taken into consideration to enhance the stability of plumb datum line.

在深入分析激光准直技术中三项主要误差因素来源及其特性的基础上，提出了利用多点监测、多元多项式逐步回归分析法与自适应除噪技术相结合的综合修正方案，建立铅垂基准线的修正模型，综合考虑了激光漂移、光线弯曲以及随机抖动等因素的影响，从而有效提高了铅垂基准线的稳定度。

The host produces: The wedge type gate valve, the bright pole coal gas gate valve, the gate valve, the electrodynamic balance-like double damper plate gate valve, the box thread gate valve, the bright pole underground gate valve, the electrically operated dark pole wedge type gate valve, seals the gate valve, the knife gate valve, the cut-off valve, the box thread cut-off valve (Japanese-style, Soviet type), to turn on lathe softly opens the type check valve, to risefall the check valve, the noise elimination check valve, to clamp the small dish shape check valve, the vertical check valve, to stand lies the dual purpose check valve, the small dish shape by-pass valve, the by-pass valve, the stopcock, the Three Contacts stopcock, the plunger valve, the ball valve, the flange reed valve.

主产：楔式闸阀、明杆煤气闸阀、闸阀、电动平衡式双闸板闸阀、内螺纹闸阀、明杆地下闸阀、电动暗杆楔式闸阀、软密封闸阀、刀型闸阀、截止阀、内螺纹截止阀、旋启式止回阀、升降止回阀、消声止回阀、对夹碟形止回阀、立式止回阀、立卧两用止回阀、碟形平衡阀、平衡阀、旋塞阀、三通旋塞阀、柱塞阀、球阀、法兰蝶阀。

Although mid-value filtering is often used to eliminate seismic information noise, it does not have good effect on noise elimination because of its high requirements for noise-eliminated information.

中值滤波是地震资料去噪处理中的常用工具，由于其对去噪资料有较严格的要求，使去噪效果不甚理想。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。