In this paper, a new means about the phase comparison of zero sequence voltage and zero sequence current is proposed.
提出了一种利用单片机对零序电流和零序电压进行相位比较,改进一般智能漏电保护装置的新方 法。
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。
phase comparison carrier relay
相位比较式载波继电器
phase comparison sinusoidal frequency shift keying
相位比较正弦移频键控
phase-comparison relaying
相位比较继电保护方式
Methods for the calibration of vibration and shock pick-ups--Primary vibration calibration by comparison of phase angles
GB/T13823.7-1994振动与冲击传感器的校准方法相位比较法振动校准
2 is proposed in this paper in ord to improve operating performance of protection.
2作为操作电流进行两侧电流相位比较的动作判据。
The lecturer compared the two poets with each other.
这位讲师把两位诗人相互作了比较。
Study and comparison of the fringe phase demodulation algorithms
干涉图象相位解调算法的比较研究
Electric discharge characterized by a cathode fall that is small compared with that in a glow discharge.
与辉光放电相比，阴极位降相对较低的放电形式。
On the contrary, the niche similarity among the species with small niche breadths was lower.
而生态位宽度较小的物种,生态位相似性比例较小。
A Comparison of the Diffraction Property between Step Type Relief and Refractory Index Phase Gratings
阶梯形浮雕和折射率位相光栅的衍射性质比较
A Comparative Analysis of Event-related Potential and Polygraph Techniques;
事件相关电位与多道心理测谎的比较分析
Comparative study of relative occlusal forces in subjects with different lateral occlusal patterns in canine-to-canine position
不同侧方型者尖对尖颌位时相对力的比较研究
Application research on method of working voltage phase comparison in distance protection
比较工作电压相位法在距离保护中的应用研究
Methods and Comparison of Cycle-slip Determination in Single-frequency Undifferenced Phase Observation
单频非差相位观测值的周跳探测方法及其比较
The more important measurements to be made on the model are those of absolute and relative displacements.
模型上应进行的比较重要测量的是绝对位移与相对位移。
Event-related potential N270 in adults and school age children;
儿童事件相关电位N270—头皮电位分布特点及与成人的比较
draw a parallel between A and B
把A和b相比较. similarity 相似处
drawing a comparison in order to show a similarity in some respect.
相互比较而得出相同点。