Well, this unit here on display is a full scale assembly of our latest machine.
哦,这里所展示的这一部是本公司最新机器的全套设备。
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。