| 1. | He proved the existence of parallel lines .
他证明了平行线的存在性。 |
| 2. | Parallel lines indicates a break in continuity .
平行线表示连续的中断。 |
| 3. | A family of parallel lines cut the conic .
有一组平行线与圆锥曲线相交。 |
| 4. | Consider a family of parallel lines that cut the conic .
设有一组平行线与圆锥曲线相交。 |
| 5. | Jerusha went without comment, but with two parallel lines on her brow .
杰鲁莎默默地去了，额上平添了两道皱纹。 |
| 6. | There is an exceptional case, three forces with paralleled lines of action, which will be discussed in chapter 3 .
三个力的作用线相互平行的例外情况，我们将在第三章讨论。 |
| 7. | Our careers seem to run on parallel lines
看来我们的事业是在齐头并进。 |
| 8. | Love can only become eternal parallel lines thereupon right away
于是爱情就只能成为永远的平行线。 |
| 9. | Parallel lines converge at infinity
平行线永不相交 |
| 10. | 5 fields of 4 parallel lines omnidirectional minimum bar width
全向多线扫描5个方向，每个方向上4条平行扫描线 |
