在A29家族是由劳斯莱斯流星引擎推动，最高额定为700马力，这会给家族30英里每小时（48.3公里）和动力的最高时速与重量13.82马力/吨的比例。
Thee A29 Clan was to be propelled by a Rolls-Royce Meteor engine, up-rated to 700 bhp, which would give the Clan a top speed of 30 mph (48.3 kph) and power to weight ratio of 13.82 hp/tons.
布赖德鲸瞬间爆发的最高速度可达到每小时18英里，身长可以长到50英尺长、体重达22吨，只比它们的亲戚蓝鲸小了一点。
Built for bursts of speed that may top 18 miles an hour, Bryde's whales can grow 50 feet long and weigh 22 tons-smallish only compared with their colossal blue whale kin.
这架飞机可以飞低至半年米从表面上看，打的速度上升到180英里每小时可携带多达4吨腾飞。
The plane can fly as low as half a meter off the surface, hitting a speed of up to 180 miles per hour and can carry up to 4 tons on take-off.
科技大学生艾米利奥-加斯塔诺说：“我们要用一只风筝在风速为每小时15英里的情况下抬起3吨半重的石块。”
So, we're using one kite in 15 mile per hour winds to lift up a three and half ton block, " said Caltech student Emilio Castano."
我们这里所说的防撞围栏可以承受重量为7.5吨的交通工具以每小时40英里的速度所带来的撞击。
The crash-rated cycle stand, shown here, can withstand the impact of a 7.5-metric-ton vehicle at 40 miles per hour.
我们这里所说的防撞围栏可以承受重量为7.5吨的交通工具以每小时40英里的速度所带来的撞击。
The crash-rated cycle stand, shown here, can withstand the impact of a 7.5-metric-ton vehicle at 40 miles per hour.
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