frames of reference
A: 边框
B: 理论
C: 涉及
D: 参考
A: 边框
B: 理论
C: 涉及
D: 参考
举一反三
- If we choose two different reference frames to analyze the motion of an object, the description of motion can be different.
- When we choose two different reference frames to analyze the motion of an object, the description of motion can be different.
- If we choose two different reference frames to analyze the motion of an object, the description of motion can be different. A: 正确 B: 错误
- When we choose two different reference frames to analyze the motion of an object, the description of motion can be different. A: 正确 B: 错误
- 以下哪些属于下行物理参考信号（reference signal）？