Pulse-duration modulation-frequency modulation
[电] 脉冲期间调制频率调制
🧩 词语组成解析
pulse
[pʌls]
n. 脉搏;[无线电]（电磁波等）脉动;活力;有节奏的跳动（或拍打）;
vi. （心脏）跳动;脉动;搏动;震动;
vt. 使跳动;有节奏地驱动（机器等）;[电子学]施以脉冲;[无线电]脉冲地调节（电磁波）;
pel, puls 表”驱动,推动”
modulation
[[ˌmɔdju'leiʃən]]
n. 调制, 调节, 语调\\n[计] 调制
frequency
['frikwənsi]
n. 频繁性;[数][物]频率，次数;频率分布;
fr + equ =equal,even,表示“相等，平均” + enc + y [形容词后缀] → n.屡次；次数；频率
modulation
[[ˌmɔdju'leiʃən]]
n. 调制, 调节, 语调\\n[计] 调制
🗣️ 情景例句
That's what I thought.
我就是这么想的。
While waiting for the train I killed time by reading a book.
在等火车的时候我看书来消磨时间。
A telescope would have to be as far away as the planet Jupiter to look for life in outer space, because the dust becomes thinner the further we travel towards the outer edges of our own solar system.
望远镜要放置在木星那样遥远的行星上才有可能在外层空间搜寻生命。因为我们越是接近太阳系的边缘，尘埃就越稀薄。