| 31. | the laws of physics |
| 物理学定律
|
| 32. | the physics of the electron |
| 电子物理学
|
| 33. | a physics practical |
| 物理实验
|
| 34. | a demonstration of a law of physics |
| 证明一物理定律
|
| 35. | n( physics ) instrument for recording electrical oscillations |
| 示波器; 示波仪
|
| 36. | ( physics ) part of the earth's atmosphere that reflects medium-frequency waves |
| 亥维赛层,海氏层,E电离层(地球大气中反射中频电波的大气层)
|
| 37. | a pupil who is strong in physics but weak in English |
| 物理好而英语差的学生
|
| 38. | a course of practical physics adapted for high school students |
| 为高中生改编的实用物理学课程
|
| 39. | a physics experiment |
| 物理实验
|
| 40. | make an experiment in physics |
| 做物理实验
|