| 词汇 | mach |
| 释义 | Mach noun[ U ] uk /mɑːk//mæk/ us /mɑːk//mæk/ a measurement of speed that is calculated by dividing the speed of an object, especially an aircraft, by the speed of sound马赫（飞行速度与音速之比值） Measurements of speed accelerometer cadence G, g knot kph mph |
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