subsonic

a. 比音速稍慢的, 次音速的 [医] 听域下的

发音

其它

词形变化

subsonics 复数 subsonics

释义与例句

n.
  1. 1.

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

adj.
  1. 1.

    having a frequency too low to be audible

  2. 2.

    very quiet, almost inaudible

    文学

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

  3. 3.

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

    次音速

  4. 4.

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

词汇关系

形容词

反义词 2

sonic supersonic

词源

From sub- + sonic.

来源：wiktionary