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词汇 periodograph
释义

Definition of periodograph in English:

periodograph

noun ˌpɪərɪˈɒdəɡrafˌpɪərɪˈɒdəɡrɑːf

  • 1A periodogram; (originally) specifically a curve drawn in a periodogram. Now disused.

  • 2An instrument for automatically making a periodogram analysis or Fourier analysis of a curve by optical means.

Origin

Late 19th century. From period + -o- + -graph. Compare slightly earlier periodogram.

Definition of periodograph in US English:

periodograph

noun

  • 1A periodogram; (originally) specifically a curve drawn in a periodogram. Now disused.

  • 2An instrument for automatically making a periodogram analysis or Fourier analysis of a curve by optical means.

Origin

Late 19th century. From period + -o- + -graph. Compare slightly earlier periodogram.
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