| 1. | The best suggestion is that jupiter is still contracting gravitationally despite its age of several billion years .
最好的说明是：木星尽管已有几十亿年的历史，但由于引力作用，它仍在收缩。 |
| 2. | The gas pressure eventually overcomes the force of solar gravity and the corona inevitably expands into space as the solar wind .
这里的气体压强最终会超过太阳的引力作用，使日冕终于只好以太阳风的形式向空间膨胀。 |
| 3. | The tides depend on the pull of the moon
潮汐是月亮引力作用的结果 |
| 4. | There was a large cloud of gas and dust . it contracted by its own gravity
，有一团旋转的气体及尘埃，在自身的引力作用下开始收缩。 |
| 5. | Calibration of vibration and shock pick - ups - method for calibration by earth ' s gravitation
振动和冲击传感器的校准.通过地球引力作用的校准方法 |
| 6. | The effects of a black hole ' s gravity as decribed by the theory of relativity cause a number of peculiar effects
如相对论理论描述那样的黑洞引力作用引起许多奇特效应。 |
| 7. | He also propounded the heliocentric theory of gravitation , thus predating copernicus by almost one thousand years
他也提出以引力作用为基础的日心说，比哥白尼早了几乎一千年。 |
| 8. | That keep the stability of the ringlet . the following photo shows the shepherd satellites of the ring of uranus
，它们的引力作用，有牧羊犬的作用，可以把离群的碎片赶回光环之内。 |
| 9. | He also realized that a rocket increasing in speed at a constant rate would feel the same force of “ gravity ” as one sitting on the earth
他也认识到在恒定加速上升的火箭中，人将感受到和坐在地球上的人相同的引力作用。 |
| 10. | Going down to the sea in ships is easy enough with gravity ' s help , but at high tide the ascent upon arrival gives the legs a good mountain work out
低潮时，在引力作用下，乘船下海是非常容易的事，但高潮时潮水上涨象一座大山难以逾越。 |
