angular displacement component的用法和样例：
例句
- For each displacement component we find that there are only two values at the two ends of a boundary.
对每一位移分量，我们发现在一个边界的两端处仅有两个值。 - However, the earliest long-period seismographs recorded dispersive waves with large transverse displacement components in the main tremor.
但是，最早期的地震记录，就记录下了主震中具有很大横向位移分量的频散波。
