at a speed of
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释义
以…的速度；
双语例句
Raindrop fall at a speed of about500 to1,000 feet a minute.
雨点以每分钟大约五百到一千英尺的速度下降。
The car went at a speed of 100 kilometers an hour.
那辆车子是以每小时100公里的速度开过去了。
权威例句
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Self excitation of a variable-speed constant-frequency machine
1. Whether that's primarily of the disease for which it is raising funds or the speed at which images of swimsuit-clad celebrities will go viral is a long-term question.
这主要是为疾病筹集资金，还是泳装名人的照片以何种速度传播，这是一个长期的问题。
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2. Also, because the molecular motion of a gas depends on temperature, at the low temperatures of the Jovian planets even the lightest gases are unlikely to acquire the speed needed to escape.
此外，由于气体的分子运动依赖于温度，在木星行星的低温下，即使是最轻的气体也不可能获得逃逸所需的速度。
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3. When you go snorkeling by a school of fish, you will see every single one of those fish swimming along at the same speed.
当你在一群鱼旁边浮潜时，你会看到每一条鱼都以同样的速度游动。
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4. A search is now under way to confirm the suspected existence of particles of matter that move at a speed greater than light.
目前正在进行一项研究，以验证一些真实性存疑的物质粒子究竟是否存在。而这些物质粒子的移动速度大于光速。
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5. Even if ET has mastered building a rocket that can travel at the speed of light, he may be lying dead inside a weakened craft .
即使外星人已经掌握了制造一枚能以光速飞行的火箭的技术，他也可能死在了一架飞船里。
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6. Only a small fraction of the population was literate, but the production of books grew at an extraordinary speed.
只有一小部分人识字，但书籍的产量却以惊人的速度增长。
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7. One report tells of a totally blind boy who could ride his tricycle at good speed round the block near his home, using facial vision.
有一则报道讲述了一个完全失明的男孩，可以用面部视觉围绕他家附近的楼栋快速骑三轮车。
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8. A heavy object, like a football player moving at a high speed, has a lot of momentum—that is, once he is moving, it is hard to change his state of motion.
一个重物有很大的动量，也就是说，比如一位高速移动的足球运动员一旦运动起来，就很难改变运动状态。
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9. The axle connects to the outer arms of the Wheel, which begin to rotate at a speed of 1/8 of a revolution per minute.
车轴连接到这个车轮的外臂，外臂开始以每分钟1/8转的速度旋转。
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10. It can fly at a speed of about 200 miles per hour.
它能以每小时200英里的速度飞行。
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11. Since 1993, sea levels have risen at a speed of 3.2 cm every 10 years.
自1993年以来，海平面以每10年3.2厘米的速度上升。
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12. Humpback whales swim at a speed of 1.6 kilometers an hour from Alaska to Hawaii.
座头鲸以每小时1.6公里的速度从阿拉斯加游到夏威夷。
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13. Correct decisions came when the referees were moving at a speed of about 2 meters per second.
当裁判以每秒两米的速度移动时，裁判做出了正确的判罚。
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14. Tier 1 cities like Beijing have a couple of hundred high-speed trains stopping at the city every day.
像北京这样的一线城市每天有几百辆高铁停靠。
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15. "Speed reading is not actually possible," said Elizabeth Schotter, a scientist at the University of South Florida, U.S. Schotter pointed out that people who say that they can teach others how to speed read are usually doing it to make money by selling courses and books.
“快速阅读实际上是不可能的。”美国南佛罗里达大学的科学家伊丽莎白·肖特指出。她说那些声称自己可以教别人如何快速阅读的人，通常是通过出售课程和书籍来赚钱。
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16. Movie cameras typically operate at a speed of about 24 frames per second.
电影摄像机通常是以大约一秒24帧的速度运转的。
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17. He jogs if his knee doesn't bother him, but most often he walks on the treadmill at a speed of 4.4 miles per hour with a slight incline.
如果膝盖不犯毛病的话，他也会慢跑，但多数时间他都是在跑步机上以每小时4.4英里的速度进行缓坡走练习。
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18. Its muscles are such that it is quits incapableof moving at a speed of over a kilometer an hour even over the shortest distances and the swiftest movement it can make is a sweep of its hooked arm.
她的肌肉不能让他哪怕在很短的距离以内以每小时一公里的速度移动。它能做的最敏捷的动作就是挥一挥它弯曲的胳膊。
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19. The vehicle must take off and land at an airport; once in the air, it can range 460 miles at a speed of 110 miles per hour.
这款飞行汽车必须在机场起飞和降落；一旦升空，它可以以110迈的速度最多飞行460英里。
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20. The K21 can travel as fast as 70 kilometers per hour on paved roads and cross a river at a speed of 7.8 kilometers per hour with the help of its water-jet propulsion system.
K21可以以每小时70公里的速度在铺设的道路上行驶，喷气推进系统能每小时加速7.8公里，以这速度可以穿越过一条河流。
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21. He told us that magnetic north is moving at a speed of 50 kilometers - about 30 miles - every year. He said that scientists nowadays use satellites to track the changes.
他告诉记者，磁北极每年以50千米(约30英里)的速度移动，如今科学家使用人造卫星追踪磁极移动的轨迹。
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22. They grow up to four metres (12 feet) in length, weigh as much as 250kg (550lb) and, when chasing prey—mostly sardines—can swim at a speed of 70kph (45mph).
它们能长到4米长（12英尺），250公斤重（550磅），当追赶猎物时——大多数时候是沙丁鱼，它们的速度能达到时速70公里（45迈）。
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23. It can print at a speed of up to 35 pages per minute and grab photos to print directly from your camera's memory card.
他可以达到每分钟35张的速度而且可以直接将记忆卡中的图片打印出来。
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24. It was shown flying at a speed of slightly over 6000 mph, and rapidly changing direction in the early morning sky, it is claimed.
其飞行速度略高于6000英里/小时，并且猛然改变方向冲上清晨的天空中。
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25. The shooting stars are falling at a speed of 66 km per second.
该流星群速度可达每秒66公里。
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26. "Six sieverts of radiation is fatal for people," Edelstein says, "but [at a speed of."99 the speed of light] you'd get 61 sieverts in one second.
“6个西韦特的放射就足够致人死亡，”Edelstein说，“但(在0.”99倍光速的速度下)你每秒能受到61个西韦特。
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27. Their calculations showed that small waves of air in repeated fast pulses could steer a carpet at a speed of around one foot per second.
他们的计算表明，快速而持续的微小空气波动可以使毯子达到每秒一英尺(译者：30.48厘米)的飞行速度。
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28. At that speed, HM Cancri is the fastest binary star pair ever discovered, with each White Dwarf circling the other at a speed of 310 miles per second.
双星HMCancri是迄今为止所发现的运行最快的双星，它们是一对白矮星，其中一个围绕着另一个运转的速度是每秒310英里。
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29. At that speed, HM Cancri is the fastest binary star pair ever discovered, with each White Dwarf circling the other at a speed of 310 miles per second.
双星HMCancri是迄今为止所发现的运行最快的双星，它们是一对白矮星，其中一个围绕着另一个运转的速度是每秒310英里。
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at a speed of
