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| 1. | Analysis the twist of pole change, beam of flection and spring coil of the form change and elaborated the decision its form to change of main factor, analysis and the discussion conclude theory in actually of application, change to the form of comprehension have importance of function and meaning. |
| 摘要分析了杆的扭变、梁的弯曲和弹簧的形变，阐述了决定其形变的要素，分析和讨论了结论在实际中的应用，对形变的理解有重要的作用和意义。 |
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| 2. | The CD disk is actually read from the bottom. Thus, from the viewpoint of the laser beam reading the disk, the "pit" in the CD is actually a "bump". |
| 实际上，CD光盘是从下面读取的，因此，激光读取光盘的时候，在光盘上我们所说的的“坑形”实际上是“凸起”。 |
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