amplitude
英['æmplɪtjuːd]
美['æmplə'tʊd]
词态变化
复数: amplitudes;
助记提示
1.【信号学】：振幅，振幅是指振动的物理量可能达到的最大值，通常用 A 表示，它就是单词 amplitude 的首字母缩略。它是表示振动的范围和强度的物理量。
2. 我们通常所说的调幅就是：AM（Amplitude Modulation），而调频是：FM（Frequency Modulation ），经常听收音机的朋友肯定对这两个术语很熟悉。
中文词源
amplitude 广大，广阔ample,大量的，-itude,名词后缀。
英文词源
- amplitude (n.)
- 1540s, from Middle French amplitude or directly from Latin amplitudinem (nominative amplitudo) "wide extent, width," from amplus (see ample). Amplitude modulation in reference to radio wave broadcast (as opposed to frequency modulation) first attested 1921, usually abbreviated A.M.
双语例句
- 1. As we fall asleep the amplitude of brain waves slowly becomes greater.
- 进入睡眠状态时，我们的脑电波振幅慢慢变大。
来自柯林斯例句
- 2. The amplitude of the vibration determines the loudness of the sound.
- 振动幅度的大小决定声音的大小.
来自《简明英汉词典》
- 3. Business cycles did not fade away, but their amplitude did moderate substantially.
- 商业周期虽未消失, 但其波动范围受到了很大的限制.
来自英汉非文学 - 新闻报道
- 4. The frequency and amplitude of vibration are monitored .
- 振动的频率与振幅受到监控。
来自辞典例句
- 5. The foreground for the cooperation between China and UAE in the energy field is amplitude.
- 中阿能源领域合作势头好，前景广阔。
来自辞典例句