| 1. | The only light came through a narrow aperture .
仅有的光亮来自一个小孔。 |
| 2. | The first aperture was sufficiently large to enter .
最初出现的洞口已可容纳一个人进去。 |
| 3. | Being cautious, he had made the aperture too small .
由于小心谨慎，他刚才把洞开得太小了。 |
| 4. | We must not forget to open the aperture at the second contact .
在食既时不要忘记放大光圈。 |
| 5. | The quadratic aperture of the cat's-eye diaphragm is imaged too large .
猫眼光栏的方形光孔成象太大。 |
| 6. | If the aperture is circular, a circular spot of light appears on the screen .
如果孔是圆形的，那么在屏幕上出现一圆形光斑。 |
| 7. | These ions pass through a slit of variable aperture and then enter the magnetic field analyzer .
这些离子通过可变宽度的狭缝进入磁场分析器。 |
| 8. | The aperture allows the desired beam to enter the camera while all other light is intercepted .
孔可以使所需要的光束进入照相机，而将其余的光线遮挡住。 |
| 9. | Figure 6-9 shows the oven with the small aperture for viewing the radiation leaving the enclosure .
图6-9表示一个空腔，上面开着一个小孔，用来观察空腔发出的辐射。 |
| 10. | Now remove a small disk-shaped segment from the center of the screen so that light streams through the aperture .
现在从屏的中央挖掉一个圆盘形小块，使光通过此孔射出。 |
