subsonic background

subsonic

/sʌbˈsɑnɪk/ /sʌbˈsɒnɪk/

Illustration subsonic - Image 1

noun

亚音速飞机，低音速飞机

An aircraft whose maximum speed is less than the speed of sound

Examples :

"The Boeing 737 is a well-known subsonic; it flies slower than the speed of sound. "

波音737是一种广为人知的亚音速飞机，它的飞行速度低于音速。

vehicle military technology science physics

Illustration subsonic - Image 1

adjective

次音速的，亚音速的

(of a sound, scientific) having a frequency too low to be audible

Examples :

"The machine emitted a subsonic rumble that we could only feel, not hear. "

这台机器发出一种次音速的低频震动，我们只能感觉到，却听不见。

sound physics frequency

Illustration subsonic - Image 1

adjective

亚音速的, 低于音速的

(of a sound, literary) very quiet, almost inaudible

Examples :

"The noise of the ship was all around her. The faint subsonic rumble of the reactor and drive. (Leviathan Wakes, James S. A. Corey)"

船的噪音包围着她。反应堆和推进器发出几不可闻的低沉轰鸣。

sound literature

Illustration subsonic - Image 1

adjective

亚音速的，低于音速的

(of a speed) less than the speed of sound (in the same medium, and at the same temperature and pressure)

Examples :

"The small plane flew at a comfortable, subsonic speed. "

那架小飞机以舒适的亚音速速度飞行。

physics sound technology

Illustration subsonic - Image 1

adjective

亚音速，低于音速的。

(of a flow) with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources)

Examples :

"The small airplane flew at a subsonic speed, much slower than a jet. "

这架小型飞机以亚音速飞行，比喷气式飞机慢得多。

physics technical sound science