Due to the limitation of frequency resources, the contradiction between network capacity and the growth of traffic is conspicuous.
由于受到网络频率资源的限制，网络容量与话务量增长之间的矛盾日益突出。
2
In view of the limitation of safety and efficiency of current water-heater, the basic structure and principle of a supersonic-frequency induction water-heater are introduced.
针对目前热水器的安全，效率等局限性，本文介绍了一种超音频感应加热热水器的基本结构和原理。
3
For the limitation of the accuracy of IFM technology, the frequency tracking accuracy can't be examined directly.