sound barrier

名词 n.
中文释义

英文释义

名词 n.
  1. Sonic barrier, the sudden increase in drag (resistance) and other effects experienced by moving objects when their speed approaches that of sound or becomes supersonic (which used to be considered a barrier to higher speeds). uncountable
  2. A noise barrier, a structure beside a highway designed to reduce the noise of traffic. countable
    — St Ives: The guided busway on the old railway alignment to Cambridge has just passed its tenth anniversary. Railfuture has noted its down-at-heel physical appearance, with dirty concrete beams, damaged sound barriers, and unmanaged vegetation.

词形变化

sound barriers plural

词汇关系

相关词
speed of sound
0 次浏览 数据来源: Wiktionary