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| マッハ数 (Mahha-sū) | |||
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| マッハ数 (Mahha-sū) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
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| コーシー数 (Kōshī-sū) River and Water Resources Glossary (Infrastructure Development Institute Japan) | |||
| English thesaurus | |||
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| The ratio of the speed of an object to the local speed of sound | |||
| M | |||
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| 4 digit number identifying PSDS input device (MODS report abbreviation) | |||
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Mach number : 4 phrases in 2 subjects |
| General | 2 |
| Physics | 2 |