| 1. | The isoclinics rotate in the same sense as the polaroids .
等倾线的转向与偏振镜的转向相同。 |
| 2. | The ocean itself--that serene and tideless sea-lay scarce less hushed .
一平如镜的安宁的海面也十分静谧。 |
| 3. | 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。 |
| 4. | Both the polarizer and analyzer settings and the position of the prism can be varied .
偏振镜和分析器以及梭镜的位置均可变动。 |
| 5. | Some of the advantages of lens stereoscopes are compactness, simplicity and ready portability .
透镜式立体镜的一些优点是坚固、简单、轻便。 |
| 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. | Doubtless there was a large sweep of park and a broad glassy pool in front of that mansion .
毫无疑问，私邸前面有一大片邸园，还有清澈如镜的大池塘。 |
| 8. | The primary mirror is 80 cm in diameter, a respectable size even for an observatory on the ground .
主镜的直径为80厘米，这一口径即使在地面天文台也是很可观的。 |
| 9. | The quarter-wave plates are attached by bayonet type couplings to the supporting rings of their respective polarizers .
四分之一波片借助于枪刺式联结器与各自的偏振镜的座环相联结。 |
| 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。 |
