echometry

测回声术

释义与例句

n.
  1. 1.

    acoustics;

    废旧 不可数
  2. 2.

    acoustics;

    The art of constructing vaults to produce echoes.

    废旧 不可数
  3. 3.

    acoustics;

    A hypothetical science of echos.

    废旧 不可数
  4. 4.

    The scientific measurement of sounds or echoes.

    不可数
  5. 5.

    The scientific measurement of sounds or echoes.

    The use of reflected sound waves to measure the shape or movement of objects.

    不可数
  6. 6.

    The scientific measurement of sounds or echoes.

    The use of ultrasound echos to make biometric measurements (as opposed to making images, which is called medical ultrasound).

    不可数 医学

词源

From echo + -metry, compare French échométrie.

来源：wiktionary