1) similar frequency noise
同频噪声
1.
Suppression of similar frequency noise in the design of ultrasonic flow-meter with TDC
TDC超声流量计设计中的同频噪声处理
2) audio-frequency noise
声频噪声
3) high frequency noise
高频噪声
1.
Then the supersonic ejector is used,the high frequency noise will take place when the pressure in store tanks decreases to a specific value,and the environment of .
但使用超音速引射器后,当球罐压力下降到某一值时会产生高频噪声,影响管束区操作环境。
2.
Besides, the influence of receiving condition upon data acquisition are studied by analysing geophone and its coupling to ground, and the effect of high frequency noise on data acquisition is a.
本文结合三维高分辨率地震的特点 ,对大庆探区太 190三维开发研究区的施工参数进行了论证和选取 ;探讨了井深和仪器因素的选取原则及方法 ;从检波器及其与地面的耦合关系出发研究了接收条件对资料采集的影响 ;分析了高频噪声对资料采集的影响 ,并指出提高高频信噪比是进一步提高地震资料分辨率的关键 ,而小基距的检波器组合是实现这一目的的有效途径和方
3.
In order to prevent the high frequency noise interference from high voltage direct current (HVDC) converter to power line carrier (PLC) communication, the conventional method is that PLC noise filters are installed both on AC and DC sides of a converter, but sometimes, PLC noise filter faults caused the HVDC outages.
为防止高压直流输电(HVDC)换流阀高频噪声对电力线载波(PLC)通信的干扰,常规方法是在换流站交、直流侧安装高频噪声滤波器,但噪声滤波器时有故障并造成HVDC系统停运。
4) low-frequency noise
低频噪声
1.
Impact of indoor virescence on annoyance of indoor low-frequency noise;
室内绿化装饰对低频噪声烦恼度的影响
2.
Theoretical analysis of low-frequency noise radiated from bridge vibrations;
桥梁振动辐射低频噪声评估方法研究
3.
The investigation of relations between low-frequency noise subjective sensation and spectrum characteristics
低频噪声主观感知与频谱特征关系研究
5) Noise spectrum
噪声频谱
1.
The noise spectrums of a ball mill under the different functional modes have detected and anlysedin this paper .
本文对球磨机在不同工作状态下的噪声频谱进行了测定和分析,获得了噪声频谱和磨机工作状态参数的定量关系,真实地反映了磨机的工作状态,为建立其数学模型,实现磨机的自动控制,达到节能高产的目的提供了依据。
2.
The noise spectrum is the curve of all kinds of the noise frequencies.
噪声是发电机运行时存在的一种物理现象,它间接地反映了发电机的运行情况,而噪声频谱可以通过测试各种频率下噪声级数值而绘制的噪声曲线来表示。
6) high-frequency noise
高频噪声
1.
Automatic recognition and suppression of high-frequency noises in time-frequency domain;
时频域自动识别与压制高频噪声
2.
An effective finite-difference time-domain(FDTD) method,timebiased FDTD method,is developed to filtrate high-frequency noise for particle-in-cell(PIC) simulation.
给出一种能自动对高频噪声进行过滤的时域有限差分(FDTD)算法,称为时偏FDTD算法。
补充资料：超声频移诊断
超声频移诊断
ultrasonic doppler diagnosis
亦称“D型超声诊断法”。是应用多普勒效应超声探测血液流动和脏器活动的方法。此法可获得因回声频率变化(即多普勒效应)的信号音图、曲线图及多普勒图像。可对血流听诊、测速，获得横断面、纵剖面及侧面投影图。超声心动图可确切显示心脏某一指定部位血流速、向性数据。其最大优点为无损伤、操作简便、迅速、便于重复应用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条