| 1. | A river forms the boundary between the two countries .
一条河流成了两国的分界线。 |
| 2. | The dividing line between the two is not always sharp .
两者的分界线不总是明确的。 |
| 3. | The borderline between informal language and slang is hard to define .
口语和俚语之间的分界线是很难确定的。 |
| 4. | Probably the dividing line occasionally became blurred even in haig's mind .
也许这条分界线在黑格的心目里有时也含混不清。 |
| 5. | The separator is equipped with a sight glass through which a boundary line of the liquid phases can be observed .
分离器设有窥视镜，通过它能够视察液间的分界线。 |
| 6. | Unitary elasticity is the coincidental case that is just on the borderline between elastic and inelastic .
关于单弹性是一种巧合。这种巧合是有弹性和缺乏弹性的分界线。 |
| 7. | The differences between surface creep and saltation are gradual and it is difficult to draw a fixed dividing line .
表面爬行和跳跃之间的差别是渐变的，它很难划一条固定分界线。 |
| 8. | We found demarcation walls in many farm units indicating the borderline between the water rights of adjacent farms .
我们在许多耕作单元内找到分界墙，表明相邻农场之间用水权的分界线。 |
| 9. | The arabs were so astonished at their success in getting across the prewar line at all that it had turned their heads .
阿拉伯人对自己竟然能够成功地越过战前的分界线感到如此惊讶以致被弄得晕头转向。 |
