| 1. | This setup, known as a conoscope, is shown in figure 14. 2 and consists of two stress-free plano-convex lenses a and b .
此装置称为锥光镜，如图142所示，它由A和B两个无应力平凸透镜组成。 |
| 2. | This setup, known as a conoscope, is shown in figure 14. 2 and consists of two stress-free plane-convex lenses a and b and a diaphragm c having a small aperture .
此装置称为锥光镜，如图142所示，它由A和B两个无应力平凸透镜和一个带小孔的光阑C组成。 |
| 3. | He focused the sun ' s ray on a piece of paper with a burning - glass
他用一面凸透镜把阳光在纸上聚成焦点 |
| 4. | He focused the sun ' s ray on a piece of paper with a burning - glass
他用一面凸透镜把阳光在纸上聚成焦点。 |
| 5. | Just as a double convex lens enlarges , so a double concave lens reduces
正象双凸透镜可以放大那样，双凹透镜也可以缩小。 |
| 6. | Or broken bottles in the furze act as a burning glass in the sun
要么就是荆豆丛中的玻璃瓶碎片在阳光下起到凸透镜的作用。 |
| 7. | That s how that wise man what s his name with the burning glass
那是玻璃照的。因此，脑袋爪儿挺灵的某人就利用凸透镜来点火。 |
| 8. | Of course they did ; for i felt their eyes directed like burning - glasses against my scorched skin
她们当然是看到了。我觉到她们的眼睛像凸透镜那样对准了我烧灼的皮肤。 |
| 9. | This setup , known as a conoscope , is shown in figure 14 . 2 and consists of two stress - free plano - convex lenses a and b
此装置称为锥光镜，如图14 2所示，它由a和b两个无应力平凸透镜组成。 |
| 10. | It is above and supported by seawater , rises and falls with the tides and accretes with seawater
其形态中间厚，边缘薄，宛如一枚巨大的凸透镜，承托于海水之上，与潮汐同涨落，与海水相伴生。 |
