| 81. | The ship's engines even at full speed cause little vibration. |
| 这条船的引擎即使在全速震动时也很小。
|
| 82. | The new airplane flies at twice the speed of sound. |
| 这种新式飞机以两倍于音速的速度飞行。
|
| 83. | I put my foot down and the Zephyr gathered speed up the slope. |
| 我踩大油门，西风牌汽车加速爬上了斜坡。
|
| 84. | There is a special formula for calculating distance, if speed and time are known. |
| 假如已知速度和时间，就可用一条特殊的公式求出距离。
|
| 85. | Of the speed of the two swimmers, there is a slight favor for the first. |
| 那两个游泳者的速度比起来第一个略占优势。
|
| 86. | The winning car reached a speed of forty miles an hour -- much faster than any of its rivals. |
| 获胜的那辆车达到了时速40英里--远远超过任何对手。
|
| 87. | Although Campbell reached a speed of over 304 miles per hour, he had great difficulty in controlling the car because a tyre burst during the first run. |
| 尽管坎贝尔达到了每小时超过304英里的速度，但他很难把汽车控制住，因为在开始的行程中爆了一只轮胎。
|
| 88. | After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour. |
| 比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。
|
| 89. | His average speed had been 301 miles per hour. |
| 他的平均时速实际是301英里。
|
| 90. | It now came straight towards them at tremendous speed . |
| 它现在正以惊人的速度直冲他们驶来。
|