| 1. | Radio waves travel in straight lines .
无线电波是直线传播的。 |
| 2. | The universe is bathed in a sea of radio waves .
宇宙浸泡在无线电波的海洋中。 |
| 3. | The original current set up by the radio waves is very feeble .
无线电波产生的初始电流很弱。 |
| 4. | The highly sophisticated electronic methods rely on either light or radio wave propagation .
较复杂的电子技术是利用光或无线电波传播。 |
| 5. | Much data can be obtained by measuring the dispersion of cosmic radio waves passing near the sun .
测定穿过太阳附近的宇宙射电波的色散度也可以获得许多资料。 |
| 6. | Do any of these radio waves sweeping through space to the earth contain a message ?
在飞越空间到达地球的这些无线电波中，是否可能有一些电波包含着某一种信息呢？ |
| 7. | This high frequency alternating current produces the high frequency radio waves mentioned in the previous chapter .
这种高频交流电流产生前一章提到过的高频无线电波。 |
| 8. | The radiant energy used in such measurements may vary from x rays, through visible light, to radio waves .
测定过程中采用的光能种类很多，从X射线，可见光到无线电波。 |
| 9. | Such a reflecting layer, together with the sea, could channel radio waves from one side of the atlantic ocean to other .
这种反射层和海洋一起，能把无线电波从大西洋的此岸送到彼岸。 |
| 10. | The most obvious advantage is that because of their inability to scatter appreciably, nebular radio waves completely and genuinely delineate the distribution of nebular gas .
因为星云对射电波的散射很小，所以最明显的优点就是能够全面而真实地勾画出星云气体分布的外貌。 |
