| 1. | The lower half of the pattern will be obtructed by the presence of the mirror itself .
图样的下半部被反射镜本身挡掉了。 |
| 2. | The suspension of the mirrors must be very frictionless, but strongly damped .
反射镜的悬挂既要无摩擦，但又要有强阻尼。 |
| 3. | The curvature of the film is concentric with the mirror behind the meniscus .
胶片的曲率是和弯月透镜后面的反射镜同心的。 |
| 4. | There, a slight shift in a mirror of a fraction of a wavelength was fatal .
在那里，反射镜稍稍移动几分之一个波长都是致命的。 |
| 5. | Quite significantly, there was no blackening of the emulsion at the mirror's surface .
十分引人注意地，在反射镜表面的乳胶没有变黑。 |
| 6. | The reverse side of the mirror should be in continuous contact with air without needing ventilation .
反射镜的背面应经常与空气接触但无需通风。 |
| 7. | The mirrors here are coated with a multilayered dielectric film having a reflectance of over 99% .
这儿的反射镜上镀了一层多层介质膜，因而反射比超过99%。 |
| 8. | Actually, the mask and openings are not really necessary; the mirror alone could serve as aperture .
其实，挡光板及其上的开孔都是不必要的；单单反射镜本身就可以起小孔的作用。 |
| 9. | This is certainly true for a plane mirror but it is only approximately the case for other configurations .
对于平面镜这肯定是对的，但是对于其它形状的反射镜则情况只是近似如此。 |
| 10. | The laser's basic structure, also called the resonant cavity, is essentially a long tube with mirrors at each end .
激光器的基本结构（也称为谐振腔）实质上是一根两端都有反射镜的长管。 |
