| 1. | A simple periscope uses mirrors .
简单的潜望镜使用平面镜。 |
| 2. | The image here is spoken of as virtual just as is the familiar image generated by a plane mirror .
这时的像叫做虚像，正如由平面镜所生成的熟知的像一样。 |
| 3. | 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。 |
| 4. | Three vertical mirrors are placed inside the window
房内摆放了三面与地面垂直的平面镜。 |
| 5. | The recognize way is to see the 4 corners are arc frames
其辨识平面镜是塑胶上镀金的方法为，四角边框为圆弧型。 |
| 6. | Parallel flat mirror resonator
平行平面镜共振器 |
| 7. | Two vertical mirrors perpendicular to each other are placed inside the windows
窗内摆放了两面与地面垂直的平面镜，两者的夹角成90度。 |
| 8. | Two horizontal mirrors perpendicular to each other are placed inside the windows
窗内摆放了两面与地面平行的平面镜，两者的夹角成90度。 |
| 9. | Two vertical mirrors inclined at an angle greater than 90xare placed inside the windows
窗内摆放了两面与地面垂直的平面镜，两者的夹角大于90 。 |
| 10. | Two vertical mirrors inclined at 45xwith each other are placed inside the windows
窗内摆放了两面与地面垂直地的平面镜。两镜之间的夹角为45度。 |
