Research on system oscillation center movement;
关于系统振荡中心偏移的探讨
Based on investigation of the characteristics of the location and the movement of oscillation center, the reason for the movement of oscillation center is given.
基于对振荡中心(oscillationcenter)的位置及其漂移特征的研究,指出了振荡中心漂移的原因,并提出了失步中心(centerofout-of-step)的概念。
The reasons and characteristics of the movement of oscillation center and the behavior of varying electrical quantities during this kind of asynchronous operation are also discussed.
针对复杂电力系统发生多频率异步运行的情况，振荡中心飘浮移动的原因、规律以及电气量变化的特征进行了初步分析与探讨，并通过数字仿真进行了必要的验证。
In the paper,the location of oscillation-angle oscillation center and its voltage characteristics in the course of asynchronization of equivalent two-machine power system with unidentical internal voltages are studied.
基于等值电势幅值不等的双机系统在失步过程中振荡角的振荡中心位置公式,研究了振荡角的振荡中心电压公式及其变化特征。
Based on the changing track of the voltage of oscillation center, this device can distinguish accelerating out of step from decelerating out of step, and it can adapt to the change of system network and system operating mode.
通过对电力系统异步运行状态的分析 ,提出了利用振荡中心电压的变化特征来判断系统失步的失步解列装置。
A Review on Relation Between Heart Rate Turbulence and Heart Rate Variability or Baroreflex Sensitivity and the Clinic Value;
心率振荡与心率变异、压力反射敏感性的关系及其临床意义
Study of heart rate turbulence in patients with acute myocardial infarction and unstable angina pectoris;
急性心肌梗死和不稳定性心绞痛患者心率振荡现象的临床研究
Effects of percutaneous coronary intervention on heart rate turbulence in acute myocardial infarction patients;
急性心肌梗死患者直接经皮冠状动脉介入治疗对心率振荡的影响
In this paper a study has been made on medium range oscillation characteristics at Zhongshan and Syowa stations during Antarctic ozone hole period with the data of atmospheric ozone observed at Zhongshan and Syowa stations in Jul.
本文用１９９３和１９９４年７～１２月中山站及昭和站大气臭氧观测资料和１９９３年７～１２月中山站地面温度、气压及戴维斯站探空资料，对南极臭氧洞期间中山站和昭和站的中期振荡特征进行了研究。
Heart Rate Turbulence and Clinical Prognosis in Chronic Heart Failure;
窦性心率振荡对心力衰竭预后的评价
Clinical Analysis of Heart Rate Turbulence in Chronic Heart Failure
慢性心力衰竭患者心率振荡现象临床观察
Detection and clinical significance of heart rate turbulence in patients with acute cerebral stroke
脑卒中患者的心率振荡检测及其临床意义
The Changes and Clinical Significance of Heart Rate Turbulence in Patients with Chronic Heart Failure;
慢性心力衰竭患者窦性心率振荡的变化及其临床意义
Effect of early application of bisoprolol on heart rate turbulence phenomenon in patients with acute myocardial infarction
比索洛尔对早期急性心肌梗死患者心率振荡的影响
The Changes and Clinical Significance of Heart Rate Turbulence in Patients with Acute Coronary Syndrome;
急性冠脉综合症患者窦性心率振荡的变化及其临床意义
An oscillator for generating the carrier frequency of a transmitter.
主控振荡器产生载波频率的振荡器
variable frequency crystal oscillator
可变频率晶体振荡器
Frequency-agile local oscillator
频率捷变本地振荡器
crystal oscillator power amplifier
晶体振荡功率放大器
automatic frequency control generator
自动频率控制振荡器
maximum oscillating frequency of table
工作台最高振荡频率
A quasi-ring oscillator is used and high efficiency of laser output can be achieved.
振荡器采用准环形振荡,能获得高效率激光输出。
POSM (Parallel-Optical Stage Master Osciillator Power Amplifier)
并行光阶段主振荡器功率放大器
monolithically integrated master oscillator power amplifer
单片集成主振荡器功率放大器
MOPA (Master Oscillator Power-Amplifier)
主控振荡器的功率放大器
Rate of signal oscillation in hertz.
信号振荡的速率,以赫兹(Hz)为单位。
R&D on Ku Band Miniature Power Dielectric Resonator Oscillator
Ku波段小型化功率介质振荡器的研制
