| 1. | Two perpendicular lines are chosen as the x and y coordinate axes . 选两条垂线作为x和y坐标轴。 |
| 2. | Flight lines are roughly perpendicular to geologic strike . 飞行路线大致垂直于地质构造的走向。 |
| 3. | Draw a line perpendicular to the horizontal axis through the point . 通过这两直线的交点做横轴的垂线。 |
| 4. | The line of sight must be approximately perpendicular to the horizontal axis . 视线必须近似地垂直于水平轴。 |
| 5. | Those that are aligned perpendicular to the plane are called axial hydrogens . 与平面垂直定向的氢叫做直立氢。 |
| 6. | A corner cube consists of three mutually perpendicular reflecting planes . 角棱镜是由3个互相垂直的反射平面组成。 |
| 7. | We will denote by h the perpendicular distance from p to the inclined face . 我们用h来表示从p点到斜面的垂直距离。 |
| 8. | When a surface is perpendicular to the rays , their intensity is at their maximum . 当表面与射线垂直时,射线的强度最大。 |
| 9. | He stood now, warped out of the perpendicular by the fierce light of publicity . 此刻他站着,被众目睽睽的眼光盯得不知所措。 |
| 10. | At each crossing of an equipotential and a field line, the two are perpendicular . 在等位面与电力线的每个交点,两者是垂直的。 |