The fault phase selector discussed is based on the result that the fault component of sound phases is zero when a single-phase-to-ground fault occurs.
文中所探讨的相电流突变量选相元件,是利用单相接地故障时,两健全相相间电流突变量为零这一特征来得到的。
Alarm function: sound alarm and stop machine. Alarm content: lacking phase, under-voltage, overvoltage, high temperature and urgent stopping.
报警功能:声响报警并停机;报警内容:缺相,欠压,过压,高温,紧急停机。
"I think history will show that the planning for what happened after the initial, successful war-fighting phase was poor, probably based more on optimism than sound planning, " he said.
他指出: “我认为历史将证明在对伊战争取得胜利之后的工作计划制定的非常糟糕。或许该计划制定的过于乐观但不尽合理。
The "Sound Steward" service ZISEN pioneered covers every phase from project approval, investigation, design, construction, completion and acceptance.
声学独创的“声管家”服务,从项目立项科研阶段-项目设计阶段-项目施工阶段-竣工验收阶段。
In the second phase of the experiment, researchers played 15 different sounds for the participants and asked them to press a key when they heard a sound they recognized from the training phase.
在实验第二阶段,研究人员们给参与者们播放了15种不同的声音,并让他们在认出训练阶段中听到的声音之后按下按钮。
These functions provide a sound explanation for the experimental phenomena about the increase of backscattering light from tissue, which can't be well explained by HG phase function.
该结果能够合理解释HG相函数所不能描述的生物组织后向散射光增强的实验现象。
They reproduced sound with studio monitor quality, which, in practice meant that even at very high sound pressure levels (volume) they reproduced sound with constantly neutral, linear phase quality.
他们复制工作室质量监测,在实践中意味着即使在非常高的声压级(卷)复制与声音不断中立,线性相位质量的声音。
The sound signal is Doppler FM modulated based on the analysis of the moving track of the original source, and then phase modulated according to the interaural time difference.
该方法通过对原始声源运动轨迹的分析,对声源信号进行多普勒调频,并根据耳间时间差对双耳信号进行调相。
The measurement of sound speed in the air is studied in the experiment by phase comparison method and standing wave method.
通过实验,应用相位比较法和驻波法对空气中的声速测量进行了研究。
The principles used in measuring sound velocity by means of resonant interference and phase comparison are analyzed and compared, which are convenient for teaching.
为了方便教学,对用共振干涉法和相位比较法测定超声声速的原理进行了剖析、比。
The phase mismatch error is the main error source of sound intensity measurement system. It is difficult to eliminate this error only by upgrading the accuracy of instrument.
相位失配误差是声强测量系统的主要误差源,仅靠提高仪器的精度很难消除这一误差。
The result indicates that the sound speed of gas liquid two phase flow is much lower than single phase liquid or air medium.
结果表明:气液二相流音速比单相液体或空气介质低得多,流动机构对音速变化有显著影响。
Results show that the delay of the sound is almost imperceptible and there is also no phase discontinuity.
结果表明,基本感觉不到语音延迟,也未有相位不连读声。
The change of sound velocity with pressure, dryness degree, void-fraction, and phase-transition coefficient are analyzed. Some important conclusions are derived.
分析了两相流体中音速随压力、干度、汽隙率、相变系数等的变化关系,并从中得出了一些重要的结论。
If the sound becomes more diffuse or harder to pinpoint, it is because changing the setting is putting it out of phase with the other speaker.
如果声音变得越分散或者难以聚焦,那表示改变距离设定后让喇叭与其他喇叭相位不正确了。
Heart sound signal is a compound sound of blood fluxion in heart systolic and diastole phase.
心音信号是心脏在舒张和收缩运动中心肌、血液和瓣膜等机械振动产生的复合音。
This paper presents the way of the structure and analogy circuitry of a sound box working in inverse-phase type and the usages of the assistant soft for sound box in low frequency design.
介绍了倒相式音箱类比成集中参数等效电路的方法和音箱低频特性计算机辅助设计软件及其使用方法。
Studied two conditions of acoustic signals when it was single-phase gas and two-phase flow in the pipeline from sound spectrum, acoustic energy, peak frequency and amplitude.
分别从声波频谱,声波能量,峰值频率,以及幅值等方面对管道内为单相气体和两相流体两种状态下的声波信号进行了研究。
FM sound sync-broadcasting has overlapped service zone, the same carrier frequency and the source of the program, which can broadcast in-phase at the same time.
调频同步广播系统是具有重叠服务区,使用同一载频和同一节目源,同时同相位广播的调频发射技术。
So this technique has high sensitivity which phase difference method has and is hardly affected by the variation of the sound speed of the fluid, just as frequency difference method is .
因而该方法具备了相差法检测灵敏度高和频差法受被测流体声速变化影响小的特点。
So this technique has high sensitivity which phase difference method has and is hardly affected by the variation of the sound speed of the fluid, just as frequency difference method is .
因而该方法具备了相差法检测灵敏度高和频差法受被测流体声速变化影响小的特点。
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