词汇 | ground speed |
释义 | ground speed noun [ C usually singular ] engineering specialized uk/ˈɡraʊnd ˌspiːd/ us/ˈɡraʊnd ˌspiːd/ 地速(指飞机飞行时相对于地面的水平速度) An aircraft's ground speed is its speed when measured against the ground rather than the air through which it moves. |
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