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单词 subsonic
释义

WordReference Random House Learner's Dictionary of American English © 2024
sub•son•ic /sʌbˈsɑnɪk/USA pronunciation   adj. 
  1. Physicsof or relating to a speed less than that of sound in air at the same height above sea level:slowing down to subsonic speeds.
See -son-.
WordReference Random House Unabridged Dictionary of American English © 2024
sub•son•ic  (sub son′ik),USA pronunciation adj. 
  1. Physicsnoting or pertaining to a speed less than that of sound in air at the same height above sea level.
  2. Physicsinfrasonic.
  • sub- + -sonic 1940–45
sub•son′i•cal•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::
subsonic /sʌbˈsɒnɪk/ adj
  1. being, having, or travelling at a velocity below that of sound
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更新时间：2024/9/21 11:01:08