Значения для термина "attained a speed" отсутствуют.
1 They attained a speed of six miles an hour, and later of ten.
2 Nevertheless, the boat behaved admirably, and attained a speed of over seven miles an hour.
3 The Clermont was first started in August, 1807, and attained a speed of nearly five miles an hour.
4 The ship attained a speed of 17 per hour, and the numerous technical details stood the tests well.
5 The train was painfully slow, and rarely attained a speed of more than five or six miles an hour.
6 In trials she had attained a speed of 14.68 knots.
7 She was launched in 1850, tried in 1852, and attained a speed of nearly 14 knots an hour.
8 Turbine destroyers have attained a speed of 35 and a half knots, or nearly 41 miles per hour.
9 On the 9th September, 1912, Vedrines, flying a Deperdussin monoplane at Chicago, attained a speed of 105 miles an hour.
10 Winds at shot-time were nearly calm at the surface but attained a speed of 10 knots from the southwest at 10,300 feet.
11 In November, 1902, M. Julliot and M. Surcouf completed an air-ship for M. Lebaudy which attained a speed of nearly 25 miles an hour.
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Это словосочетание состоит из: Attained a speed через время