| 1. | Let ∠ abc be an angle of ninety degrees .
假设ABC为直角。 |
| 2. | the two lines are united at an angle of 45°.
两线以45度角结合。 |
| 3. | Two rags proceeding from the same point form an angle .
从同一点出发的两条射线形成一只角。 |
| 4. | If an angle is changing with time, we may define an angular speed .
如果一个角随时间而变化，我们就可确定一个角速率。 |
| 5. | We see that a physically possible wave pattern is an sv-wave incident at an angle .
我们看到，一种物理上可能的波式样是一个以下列角度入射的SV波。 |
| 6. | an incident wavefront of light makes an angle of 60°with the surface of a pool of water.
一束入射光的波前和水塘表面成60角。 |
| 7. | The loosening holes outside the plough cut are also drilled at an angle which improves the breakage possibility .
在楔形掏槽眼外侧的扩槽眼也要有角度以改善爆破效果。 |
| 8. | only a large triangle could possibly reveal any significant departure from an angle sum of 180°.
只有在大的三角形中才可能显示出180与三角和有任何差距。 |
| 9. | If a bay is inclined to the general line of the base at an angle of 10 mm in 24m, the error will be 0. 1 ppm .
如果一个尺段偏离基线总方向的角度相应于24米距离上的10毫米，则误差为0110-6。 |
| 10. | They reached the corner house in an angle of a dismal street, through the open door of which two men had just gone in .
他们走到一条阴森森的街道拐角上的房子，两个男人刚从敞开的大门走了进去。 |
