次声(Infrasound)是频率低于20Hz的声音。次声学是研究次声波在媒质中的产生、传播和接收及其效应和应用的科学。自然界和人类活动中广泛存在着次声波，人们正是通过次声波引发的破坏现象逐步认识它的神奇威力的包括1883年，印尼的克拉托火山大爆发，巨大的喷发激起强大的次声波，它绕了地球3周，在远离火山几万千米的观测站测到了这次次声波。
次声 [cì shēng]
n. infrasound
misc. infra-audible sound ; infrasonic sound ; subsonic sound
双语例句原声例句
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通古斯爆炸包含了地震波和次声扰乱，被世界各地记录下来。
The Tunguska event included seismic waves and infrasonic disturbances that were recorded around the world.
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他悄悄爬过舞台，举起了锤头，一次没敲中，第二次也没敲中；忽然一声巨响！
He crept across the stage; he raised the hammer; missed once; missed twice; then a huge bang!
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风给了我们的祖父第一次呼吸，也接受了他的最后一声叹息。
The wind that gave our grandfather his first breath also receives his last sigh.
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So in one of them Joshua's warriors seem to march silently around the city seven times.
在其中一个故事里，约书亚的战士们,不出一声地绕城七次。
应用推荐
$firstVoiceSent
- 来自原声例句