Billisecond
毫微秒(十亿分之一秒)
🗣️ 情景例句
Here's my ticket and seat assignment.
这是我的机票和座位号。
I'm a genius, aren't I?
我是个天才啊。
The second marks the arrival of transverse vibrations which travel more slowly and arrive several minutes after the first.
然后记录下的是横向波的到达，横向波比纵向波传播得慢，在纵向波到达几分钟后才能到达。