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                      v鈭�

鍨傜洿婊查€忕郴鏁�(sh霉)鎸� K₂₀₌————η瑷堢畻

                A鈻砲t

     K₂₀____瑭︽ǎ20鈩冩檪鍨傜洿婊查€忕郴鏁�(sh霉)锛宑m/s锛�

     V——婊查€忔按閲忥紝cm³

    鈭�——瑭︽ǎ鍘氬害锛宑m²

     A——瑭︽ǎ閬庢按闈㈢⿳锛宑m²

     鈻砲——涓婁笅鏈夋按浣嶅樊锛宑m

     T——閫氶亷姘撮噺V鐨勬鏅�锛宻

    η——η姘存韩淇绯绘暩(sh霉)锛岃琛�8.5.1

                     V

   閫忔按鐜囨寜寮� Ψ₂₀₌————η瑷堢畻

                A鈻砲t

       Ψ₂₀————瑭︽ǎ20鈩冩檪鈩冮€忔按鐜囷紝s^-1

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