subsonic

名词 n. 形容词 adj.
中文释义

英文释义

名词 n.
  1. an aircraft whose maximum speed is less than the speed of sound
形容词 adj.
  1. having a frequency too low to be audible not-comparable
  2. very quiet, almost inaudible literary,not-comparable
    — 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. (aviation) less than the speed of sound (in the same medium, and at the same temperature and pressure) not-comparable
    — But British Airways Flight 112 made the trek in under five hours, setting a new record for the fastest subsonic commercial flight across the Atlantic Ocean.
  4. with a Mach number such that 0.3 < Ma < 0.8 (approximately - the exact limits vary between sources) not-comparable

词形变化

subsonics plural

词汇关系

衍生词
subsonically
相关词
hypersonic plasmasonic supersonic transonic

词源

词源 1
Etymology tree
Proto-Indo-European *upó
Proto-Italic *supo
Latin sub
Latin sub-der.
English sub-
Proto-Indo-European *swenh₂-
Proto-Indo-European *swónh₂os
Latin sonus
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English sonic
English subsonic
From sub- + sonic.
词源 2
Etymology tree
Proto-Indo-European *upó
Proto-Italic *supo
Latin sub
Latin sub-der.
English sub-
Proto-Indo-European *swenh₂-
Proto-Indo-European *swónh₂os
Latin sonus
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -iquebor.
Middle English -ik
English -ic
English sonic
English subsonic
From sub- + sonic.
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