| 1. | The phase difference between the two sources is gradually drifting with time .
两个源的位相差随时间逐渐移动。 |
| 2. | The presence of stray light is indicated by the absence of complete extinction when the phase difference is such that this should be achieved .
若位差达到应当消光的程度，却未能完全消光即表示有杂散光存在。 |
| 3. | a phase difference of 90°may therefore be obtained by means of two successive total reflections at either of these angles.
所以，如果在其中某一角度接连全反射两次，则可获得90的相位差。 |
| 4. | if we introduce(7. 5. 50)into(7. 5. 48), we see that there is only a phase difference of 2δ in the totally reflected svwave.
如果将（7.5.50）代入（7.5.48）中，我们就看到全反射的SV波只有一个周相差2。 |
| 5. | Measuring velocity of light using phase difference method
相位差法测量光的速度 |
| 6. | Magnetoelectric phase difference torque measuring instrument
磁电相位差式转矩测量仪 |
| 7. | Magnetoelectric phase difference torque transducer
磁电相位差林转矩传感器 |
| 8. | Phase difference on line measuring based on microcontroller
基于单片机的相位差在线测量 |
| 9. | Phase difference measuring instrument based on fpga technology
在数字相位差测量仪中的应用 |
| 10. | Phase difference measuring system based on virtual instrument
基于虚拟仪器的相位差测量系统 |
