The selection of the insulator applied for a large power very low frequency transmitting antenna were studied. 本文对大功率甚低频发射天线用绝缘子的选型进行了研究。
Expenses for repairing and maintenance were reduced after the low frequency sound wave deashing device was used. 经采用低频声波清灰装置,减少了检修和维护的费用。
This pa-per gives a new method of designing low frequency multiplier by expounding the principles and analyzing the characteristics. 文章提出了一种全新的低频倍频器的设计方法,并对其原理及特性进行了阐述与分析。
Power System forced power oscillation is a kind of low frequency oscillation caused by persistent periodic small disturbance. 电力系统强迫功率振荡为持续的周期性小扰动所引起低频振荡现象。
This paper introduces low frequency characteristic extension technique of velocity vibration sensor. 本文介绍了速度型拾振器低频特性的拓展技术研究。