COSTAS array has better correlation properties compared with the normal frequency hopping arrays.
与常规的跳频序列相比，COSTAS阵列具有良好的相关特性。
This paper discusses normal mode and normal frequency, and then standing wave as an important example of normal mode.
本文讨论简正模式、简正频率以及简正模式的重要实例驻波。
The internal mechanism of time delay filter to reduce the residual vibration of flexible structures cannot be explained with the normal frequency characteristic.
常规频率特性无法解释时滞滤波器抑制柔性机构残留颤抖的内在本质。
The design method of normal frequency standard signal source, which utilizes program control digital wave synthesis technology and achieved by microcontroller was given.
采用程控数字波形合成技术，通过单片微型计算机系统实现了工频标准信号源。
ObjectiveTo compare the effect of the normal frequency jet ventilation with the high frequency jet ventilation in suspension laryngoscopy.
比较常频通气与高频通气在支撑喉镜手术前应用效果。
ObjectiveTo compare the effect of the normal frequency jet ventilation with the high frequency jet ventilation in suspension laryngoscopy.
比较常频通气与高频通气在支撑喉镜手术前应用效果。
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