V2EX ground speed

Ground Speed

定义 Definition

ground speed(地速):指飞行器相对于地面的实际移动速度。它通常等于空速在风的影响下修正后的结果(顺风会增大地速,逆风会减小地速)。除航空外,也可泛指交通工具相对地面的行进速度。

发音 Pronunciation

/rand spid/

例句 Examples

The plane’s ground speed increased with a strong tailwind.
强劲的顺风使飞机的地速增加了。

Although the aircraft maintained the same airspeed, its ground speed dropped significantly due to a headwind, delaying the arrival time.
尽管飞机保持相同的空速,但由于逆风影响,地速明显下降,从而延误了到达时间。

词源 Etymology

该短语由 ground(地面)+ speed(速度)构成,属于航空与航海领域的常用复合名词,用来强调“以地面为参照系”的速度概念,以区别于以空气为参照的 airspeed(空速)。

相关词 Related Words

文学与作品 Notable Works

  • Pilot’s Handbook of Aeronautical Knowledge(FAA,航空知识手册)
  • Airplane Flying Handbook(FAA,飞机飞行手册)
  • Jeppesen Sanderson: Private Pilot Manual(杰普森私用飞行员教材)
  • The Right Stuff(Tom Wolfe,《太空先锋/真材实料》;涉及飞行性能与速度等术语语境)
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