V2EX subsonic

Subsonic

释义 Definition

亚音速的;低于音速的。指速度小于音速(马赫数 < 1)的运动或流动状态,常用于航空航天与流体力学语境。(也可引申指“低沉到近乎听不见的声音”,但较少见。)

发音 Pronunciation (IPA)

/sbsnk/(英)
/sbsnk/(美)

例句 Examples

The plane stayed subsonic during the whole flight.
这架飞机在整个飞行过程中都保持在亚音速。

Subsonic airflow is generally smoother and easier to predict than transonic or supersonic flow.
与跨音速或超音速气流相比,亚音速气流通常更平稳,也更容易预测。

词源 Etymology

sub- 表示“在……之下、低于”,sonic 来自拉丁语 sonus(“声音”),原意与“声音/音速”相关。合起来就是“低于音速的”,该词在现代主要随航空与空气动力学发展而广泛使用。

相关词 Related Words

文学作品中的用例 Literary Works

  • The Right Stuff(Tom Wolfe):涉及试飞与航空语境,常讨论从亚音速到超音速等飞行状态。
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