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| 21. | The wheel runs so fast that it cannot be stopped at once . |
| 这轮子转得很快无法突然让它停止转动。 |
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| 22. | Oil the wheel ; then it will turn more freely. |
| 轮子加了油就可以顺畅地转动。 |
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| 23. | The wheel turns when its axis moves. |
| 轮轴动时,轮子也跟着转动。 |
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| 24. | As the wheel turned, the bar caught fast between the floor and the gun carriage |
| 轮子转动时，铁棒就在地板和炮座之间紧紧卡住。 |
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| 25. | If we take a wheel, and spin it in empty space, it will go the same way forever. |
| 如果使一个轮子在真空中转动，它会永远同样地转动下去。 |
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| 26. | The wheel run so fast that it cannot is stop at once. |
| 这轮子转得很快无法突然让它停止转动。 |
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| 27. | The pressure of the water turns this wheel, and this is used to make electric power. |
| 水压使轮子转动，这种动能被用来发电。 |
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| 28. | A supporting shaft or member on or with which a wheel or a set of wheels revolves. |
| 车轴，轮轴一个轮子或一组轮子在其上或围绕其转动的支撑杆或部件 |
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| 29. | I then asked eighteen blind volunteers to feel the wheels and assign one of the following motions to each wheel: wobbling, spinning fast, spinning steadily, jerking or braking. |
| 然后我请了18位盲人志愿者先摸轮子，之后把下面的运动状态和每个轮子对号入座：抖动、速转动、速转动、然转动和刹车。 |
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| 30. | Most guessed that the curved spokes indicated that the wheel was spinning steadily; the wavy spokes, they thought, suggested that the wheel was wobbling; and the bent spokes were taken as a sign that the wheel was jerking. |
| 大部分人猜测弧形表示轮子在匀速转动；他们认为波浪形表示轮子在抖动；外形则被认为是表示轮子在猝然转动。 |
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