| 1. | The resin moves intermittently down and out of the bed .
树脂周期地向下移动和移出床层。 |
| 2. | Seams in the anorthosite series are only intermittently exposed .
斜长岩组中的矿层仅断续出露。 |
| 3. | Still another system is designed to send out transient pulses intermittently .
还设计了另一种系统，它能够间歇地发送瞬间脉冲。 |
| 4. | If stations are only intermittently visible it may be the only practicable system .
若有一些方向只能断斯续续地通视，这可能是唯一实用的方法。 |
| 5. | The neger has been a desert since at least that time and was inhabited only intermittently .
至少是自那时起，内格尔已是沙漠，只是断断续续地有人居住。 |
| 6. | At some higher velocity individual grains will roll and slide intermittently along the bed .
在稍高一些的流速时，个别的颗粒沿着河床间歇地滚动和滑动。 |
| 7. | We can distinguish two types of global climates which occurred intermittently in the past .
我们可以把全球性的气候分成两种类型，过去这两种气候轮替出现。 |
| 8. | She herself was weak, sensual enough, to crave intermittently for the luxury and refreshment of physical beauty .
她自己意志薄弱，贪慕姿色，常常渴望能在肉体上得到美的享受和舒畅。 |
| 9. | I have learnt english for four years intermittently
我断断续续学了四年英语了。 |
| 10. | Why does my browser s back button work intermittently
为什么我的浏览器的返回按钮时好时坏？ |
