Through observing the lightbeat on oscilloscope, the student can understand the laser Doppler effect and its application.
通过示波器观察光拍现象，可以帮助学生更好地理解多普勒效应，了解激光多普勒效应的应用。
2
Tom's pulse beat high, and a glad light was in his eye.
汤姆的脉搏跳得很厉害，眼里闪烁着喜悦的光芒。
3
Parke said there could be a cosmic shortcut through another dimension - physics theory is full of unseen dimensions - that allows the neutrinos to beat the speed of light.