| 1. | The speed limit is 40 miles per hour .
规定的最高时速为每小时40英里。 |
| 2. | Can your car make a hundred miles per hour ?
你的汽车一小时能开一百英里吗？ |
| 3. | Her car goes faster than 110 miles per hour ...
她的汽车的时速超过110英里。 |
| 4. | 60 to 120 orchard trees can be serviced by one operator per hour .
每人每小时可采收60120株树。 |
| 5. | The knot is a unit of speed equal to one nautical mile per hour .
“节”是表示每小时航行1海里的一个速度单位。 |
| 6. | At 25, 000 miles per hour our rocket will escape from the earth's pull .
在每小时25，000英里的速度下，我们的火箭就会脱离地球的引力。 |
| 7. | The average rate of rise during the first minute or so is approximately 260 miles per hour .
第一分钟左右的平均上升速度约为每小时260哩。 |
| 8. | Some 7 hours later, the wind had shifted to the east and its velocity had dropped to 10 to 15 miles per hour .
7小时以后风向转向东方，风力也降至每小时10至15英里。 |
| 9. | After his attempt, campbell was disappointed to learn that his average speed had been 299 miles per hour .
经过一番努力后，坎贝尔了解到他的平均时速是299英里，大感失望。 |
| 10. | The average steam production in the now existing commercial natural steam fields is around 30 tons per hour per well .
目前存在的生产性天然气田的平均蒸气产量为每井每小时30吨左右。 |
