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  1. 音速 - Wikipedia

  2. 音速 - 维基百科,自由的百科全书 - zh.wikipedia.org

  3. 音速 - 维基百科,自由的百科全书 - zh.wikipedia.org

  4. Speed of sound - Wikipedia

    网页The speed of sound in an ideal gas depends only on its temperature and composition. The speed has a weak dependence on frequency and pressure in ordinary air, deviating slightly from ideal behavior. In colloquial speech, …

  5. 音速 - Wikiwand

  6. 音速 - 百度百科

  7. Mach number - Wikipedia

    网页The Mach number (M or Ma), often only Mach, (/ mɑːk /; German: [max]) is a dimensionless quantity in fluid dynamics representing the ratio of flow velocity past a boundary to the local speed of sound. [1][2] It is named …

  8. 音速 - 維基百科,自由嘅百科全書

  9. 音速 - 維基百科,自由的百科全書 - zh.wikipedia.org