“ultrasonic wave”的概念、定义、翻译、参考文献-科学参考

单词	ultrasonic wave
释义	ultrasonic wave Encyclopedia 理学声波释 ultrasonic wave超声波频率超过人耳可听闻频率（即在2万赫以上）的声波。又称超声。 Physics 光学、声学声学 ultrasonic wave超声波频率高于20kHz的声波。 UW=ultrasonic wave超声波 Astronomy ultrasonic wave超声波
随便看	nondegenerate system nondegenerate type non degradation substance non-degradation substance nondegradation substance nondeliverable item non-demolition filtering and observation nondense nondense set nondense subset non-denumerability non-denumerable set non-denumerably many elements non-derogatory non-derogatory linear transformation non-derogatory matrix non-Desargues affine plane non-Desargues geometry non Desarguesian geometry non-Desarguesian geometry non Desarguesian plane non-Desarguesian plane non-Desargues plane non-Desargues projective plane non-Desargues system

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