小新笑話
Mach number - Wikipedia, the free encyclopedia小新笑話小新笑話媽 :「小新,你又開電視了」小新:「我又不是要看電視」媽 :「那你在做什麼?」小新:「我在核對報紙上的電視節目表有沒有印錯」-----------------------------------------------------------------------------媽 :where M is the Mach number, u is the local flow velocity with respect to the boundaries (for example internal, like for an object immersed in the flow or external, like a channel), and c is the speed of sound in the medium. The local speed of sound, and t...
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