1、At first the method for calculating the fundamental natural frequency of structure is researched.
首先研究了結構的最低階固有頻率的計算方法。

2、When circumjacent load makes the lowest natural frequency zero, critical load is obtained.
當周邊面力使夾層圓板的最低固有頻率為零時，就可獲得臨界載荷的值。

3、Why is natural frequency important in vibration analysis?
在振動分析中，為什么自然（固有）頻率很重要？

4、Natural frequency of tail rotor of some kind of helicopter with uncertain composites was studied.
研究具有不確定復合材料參數(shù)的某型直升機尾槳的固有頻率。

5、Research on Natural Frequency and Dynamic Model of RV Reducer
RV減速器的動力學模型與固有頻率研究

6、It is the natural frequency of emission of the hydrogen atoms in space.
這是空間氫原子“釋放”的自然頻率。

7、The formulas for calculating natural frequency and vibration transmission ratio are given.
給出了鉆柱軸向振動的固有頻率和振動傳輸公式。

8、The swing is a pendulum with a single natural frequency depending on its length.
秋千是只有一個固有頻率的擺，此頻率決定于它的長度。

natural frequency翻譯