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- antenna natural frequence 天线固有频率
- Through analyzing the connatural characteristic of antenna, the factors are found that affect the natural frequency of antenna. 通过对天线固有特性分析，找到了影响天线频率的因素，为天线结构设计提供了依据；
- It is the natural frequency of emission of the hydrogen atoms in space . 这是空间氢原子“释放”的自然频率。
- It is the natural frequency of emission of the hydrogen atoms in space. 这是空间氢原子“释放”的自然频率。
- The natural frequency of specimen decreases as the crack length increases. 随着裂纹长度的增加，试样的固有频率逐渐减小。
- Equation (4-198) yields a first approximation for the change in the natural frequency of vibration. 方程（4－198）给出了一级近似下的固有振动频率的改变量。
- The swing is a pendulum with a single natural frequency depending on its length. 秋千是只有一个固有频率的摆，此频率决定于它的长度。
- Equation(4-198)yields a first approximation for the change in the natural frequency of vibration. 方程(4-198)给出了一级近似下的固有振动频率的改变量。
- The FEM equation of acoustic wave is used to calculate the air-current natural frequency and pressure pulsation in the pipeline. 利用有限元法求解声学波动方程，建立了管内气流的有限元运动方程，计算出管内气柱的固有频率和气流压力脉动。
- Keywords: micro-gyroscope, silicon single crystal, three-axis angular-rate sensing, natural frequency and mode shapes. 关键词：微型陀螺仪、矽单晶、三轴角速率感测、振动自然频率与模态。
- The natural frequency of horizontal drift of moored systems is far lower than that of the first order motion. 系泊船舶的水平慢漂运动的自然频率远低于一阶运动的自然频率。
- Reception improved because of the new antenna. 接受效果因有新天线而得到改善。
- The lower the natural frequency of the FST is, the better the performance of vibration isolation is. 浮置板系统的固有频率越低，隔振性能越好。
- The natural frequency of a RCB is an important indicator to discriminate a RCB is damaged or not. 曲率模态振型和应变模态振型对于钢筋混凝土梁的局部损伤较位移模态振型敏惑。
- The air mass between the top and bottom plates can also oscillate at the strings' natural frequencies. 面板与背板之间的空气也可以在琴弦的自然频率下共振。
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- The natural frequency is one of the parameters characterizing the feature of the anti rolling tank. 通过比较可控被动式减摇水舱几种常见的固有频率选取方法,提出了一种新的选取方法。
- It is concluded that the long and flat shape of the interlayer decreases the first bend natural frequency. 分析指出一阶整体纵向弯曲固有频率偏低是由夹层的扁平长结构导致。
- No antenna, no radio, we're back in the nineteenth century! 没有天线，没有无线电，我们回到十九世纪了。
- Objective:To investigate influences of bicortical anchora ge on the values of natural frequency of dental implants. 目的:用有限元方法研究双皮层骨种植对牙种植体初期稳定性的影响。
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